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Finding the Fourth Proportional to 402,711.60, 604,528.20 and 236,593.20

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Solution

The fourth proportional to 402,711.60, 604,528.20 and 236,593.20 is: 355,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,711.60 : 604,528.20 = 236,593.20 : x
  2. Step 2: Convert to fraction form
    402,711.60/604,528.20 = 236,593.20/x
  3. Step 3: Cross multiply
    402,711.60x = 604,528.20 × 236,593.20
  4. Step 4: Simplify right side
    402,711.60x = 143,027,261,328.24
  5. Step 5: Solve for x
    x = 143,027,261,328.24/402,711.60
  6. Step 6: Final answer
    x = 355,160.52

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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.