Luke can paint 919191 portraits in 777 weeks.

How many portraits can Luke paint in 444 weeks?

First, we would need to divide the number of portraits he can paint (919,191) by the amount of weeks it takes (777), which gives us 1,183 portraits per week. Then, we have to multiply that number by 444, which gives us 525,252, which is our answer to this problem. So Luke can paint 525,252 portraits in 444 weeks.