Whats the largest number that can round to 440000?

Need solving this 2nd limit problem.

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55

Find two numbers if their ratio is 4: 7 and their difference is 123.