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Finding the Fourth Proportional to 435,612,103.20, 653,418,154.80 and 435,612,103.20

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Solution

The fourth proportional to 435,612,103.20, 653,418,154.80 and 435,612,103.20 is: 653,418,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,612,103.20 : 653,418,154.80 = 435,612,103.20 : x
  2. Step 2: Convert to fraction form
    435,612,103.20/653,418,154.80 = 435,612,103.20/x
  3. Step 3: Cross multiply
    435,612,103.20x = 653,418,154.80 × 435,612,103.20
  4. Step 4: Simplify right side
    435,612,103.20x = 284,636,856,681,491,136
  5. Step 5: Solve for x
    x = 284,636,856,681,491,136/435,612,103.20
  6. Step 6: Final answer
    x = 653,418,154.80

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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.