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Finding the Fourth Proportional to 435,691.70, 653,648.42 and 255,929.14

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Solution

The fourth proportional to 435,691.70, 653,648.42 and 255,929.14 is: 383,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,691.70 : 653,648.42 = 255,929.14 : x
  2. Step 2: Convert to fraction form
    435,691.70/653,648.42 = 255,929.14/x
  3. Step 3: Cross multiply
    435,691.70x = 653,648.42 × 255,929.14
  4. Step 4: Simplify right side
    435,691.70x = 167,287,679,449.84
  5. Step 5: Solve for x
    x = 167,287,679,449.84/435,691.70
  6. Step 6: Final answer
    x = 383,958.84

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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.