A certain movie depicted product A in 21 scenes, B in 7 scenes, C in 4 scenes, and D in 3 scenes.The four product manufacturers paid amounts proportional to the number of scenes in which their product was depicted in the movie. If each manufacturer paid x dollars per scene, how much did the manufacturer of product D pay for this advertising?

1) Manufacturers of products A and B together paid a total of $560,000 for this advertising.
2) The manufacturer of product B paid $60,000 more for this advertising than the manufacturer of product C paid.