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Finding the Fourth Proportional to 418,508.92, 577,545.96 and 227,522.44

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Solution

The fourth proportional to 418,508.92, 577,545.96 and 227,522.44 is: 313,982.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,508.92 : 577,545.96 = 227,522.44 : x
  2. Step 2: Convert to fraction form
    418,508.92/577,545.96 = 227,522.44/x
  3. Step 3: Cross multiply
    418,508.92x = 577,545.96 × 227,522.44
  4. Step 4: Simplify right side
    418,508.92x = 131,404,666,031.34
  5. Step 5: Solve for x
    x = 131,404,666,031.34/418,508.92
  6. Step 6: Final answer
    x = 313,982.95

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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.