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Finding the Fourth Proportional to 418,581.90, 627,493.11 and 152,154.24

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Solution

The fourth proportional to 418,581.90, 627,493.11 and 152,154.24 is: 228,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,581.90 : 627,493.11 = 152,154.24 : x
  2. Step 2: Convert to fraction form
    418,581.90/627,493.11 = 152,154.24/x
  3. Step 3: Cross multiply
    418,581.90x = 627,493.11 × 152,154.24
  4. Step 4: Simplify right side
    418,581.90x = 95,475,737,257.29
  5. Step 5: Solve for x
    x = 95,475,737,257.29/418,581.90
  6. Step 6: Final answer
    x = 228,093.32

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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.