After a little thinking about your topic and its figures, it made me ponder again the possibility of certain numbers being expanded from their bases when the bases are accompanied by a certain number representing what kind of expansion will occur.
Such as 175/176, 255/256 and 561/560 could be considered as 4/5, 3/4 and 3/2, but accompanied by a specific number turns them into their greater fractions...or a specific symbol turns them into their greater fractions because there is a real difference between identifying Earth and Light, which means the expansion knows what it is identifying.
Polar and Equatorial meridians start off with the same 25,000, but different fractional ratios are applied to define the exact measures of each. Could a specific number or symbol be responsible for knowing which fractional ratio to use in which circumstance, so as not to mistake one from another?
(Just in case, I might not read your response until next year...so happy festive season to you)