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Finding the Fourth Proportional to 641,446.44, 961,505.28 and 527,934

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Solution

The fourth proportional to 641,446.44, 961,505.28 and 527,934 is: 791,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,446.44 : 961,505.28 = 527,934 : x
  2. Step 2: Convert to fraction form
    641,446.44/961,505.28 = 527,934/x
  3. Step 3: Cross multiply
    641,446.44x = 961,505.28 × 527,934
  4. Step 4: Simplify right side
    641,446.44x = 507,611,328,491.52
  5. Step 5: Solve for x
    x = 507,611,328,491.52/641,446.44
  6. Step 6: Final answer
    x = 791,354.19

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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.