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Finding the Fourth Proportional to 604,831.60, 907,247.40 and 394,706.80

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Solution

The fourth proportional to 604,831.60, 907,247.40 and 394,706.80 is: 592,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,831.60 : 907,247.40 = 394,706.80 : x
  2. Step 2: Convert to fraction form
    604,831.60/907,247.40 = 394,706.80/x
  3. Step 3: Cross multiply
    604,831.60x = 907,247.40 × 394,706.80
  4. Step 4: Simplify right side
    604,831.60x = 358,096,718,062.32
  5. Step 5: Solve for x
    x = 358,096,718,062.32/604,831.60
  6. Step 6: Final answer
    x = 592,060.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.