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Finding the Fourth Proportional to 1,031.24, 1,545.87 and 482.96

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Solution

The fourth proportional to 1,031.24, 1,545.87 and 482.96 is: 723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.24 : 1,545.87 = 482.96 : x
  2. Step 2: Convert to fraction form
    1,031.24/1,545.87 = 482.96/x
  3. Step 3: Cross multiply
    1,031.24x = 1,545.87 × 482.96
  4. Step 4: Simplify right side
    1,031.24x = 746,593.38
  5. Step 5: Solve for x
    x = 746,593.38/1,031.24
  6. Step 6: Final answer
    x = 723.98

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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.