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Finding the Fourth Proportional to 496,172.40, 744,028.20 and 215,545.20

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Solution

The fourth proportional to 496,172.40, 744,028.20 and 215,545.20 is: 323,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,172.40 : 744,028.20 = 215,545.20 : x
  2. Step 2: Convert to fraction form
    496,172.40/744,028.20 = 215,545.20/x
  3. Step 3: Cross multiply
    496,172.40x = 744,028.20 × 215,545.20
  4. Step 4: Simplify right side
    496,172.40x = 160,371,707,174.64
  5. Step 5: Solve for x
    x = 160,371,707,174.64/496,172.40
  6. Step 6: Final answer
    x = 323,217.71

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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.