I've been in this position several times and more often than not, the minutes never seem to distribute as I want them too. Sometimes I don't get the desired blowout. Sometimes the coach does something weird.
Because of that, if I was in your shoes I leave the guy with 47 minutes out of the lineup and would play the other 2 players the full game. 47 mins is close enough that he'll almost get full training but you don't want one of the other players getting only 38 or 40 minutes because of something unforeseen.