The above was comparing the average in Japan to the average in the US. If you want to compare medians, it’s about $43,000 in the U.S. (2023) versus 3.96 million Yen (2025). See:
https://e-housing.jp/post/average-salary-in-japan-2024-insig.... At current exchange rates that’s about $25,000. So that’s the exact same 1.7x ratio as for the averages.