I cant figure where to start! I have a four resistor circuit without values on the resistor. its an AC circuit with 50 amps, 440V/60 Hz. On R1 it has 750W/265V, R2 has 900W/260V, R3 has 1200W/120V, and R4 has 700W/265V. I have to find the values of R1 threw R4.