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Finding the Fourth Proportional to 604,824.80, 907,237.20 and 392,248.40

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Solution

The fourth proportional to 604,824.80, 907,237.20 and 392,248.40 is: 588,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,824.80 : 907,237.20 = 392,248.40 : x
  2. Step 2: Convert to fraction form
    604,824.80/907,237.20 = 392,248.40/x
  3. Step 3: Cross multiply
    604,824.80x = 907,237.20 × 392,248.40
  4. Step 4: Simplify right side
    604,824.80x = 355,862,340,120.48
  5. Step 5: Solve for x
    x = 355,862,340,120.48/604,824.80
  6. Step 6: Final answer
    x = 588,372.60

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Similar ratio
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1.5x scale

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.