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Finding the Fourth Proportional to 694,704, 958,691.52 and 392,891.52

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Solution

The fourth proportional to 694,704, 958,691.52 and 392,891.52 is: 542,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,704 : 958,691.52 = 392,891.52 : x
  2. Step 2: Convert to fraction form
    694,704/958,691.52 = 392,891.52/x
  3. Step 3: Cross multiply
    694,704x = 958,691.52 × 392,891.52
  4. Step 4: Simplify right side
    694,704x = 376,661,768,503.91
  5. Step 5: Solve for x
    x = 376,661,768,503.91/694,704
  6. Step 6: Final answer
    x = 542,190.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.