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Finding the Fourth Proportional to 363,438.96, 501,545.70 and 202,290.54

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Solution

The fourth proportional to 363,438.96, 501,545.70 and 202,290.54 is: 279,160.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,438.96 : 501,545.70 = 202,290.54 : x
  2. Step 2: Convert to fraction form
    363,438.96/501,545.70 = 202,290.54/x
  3. Step 3: Cross multiply
    363,438.96x = 501,545.70 × 202,290.54
  4. Step 4: Simplify right side
    363,438.96x = 101,457,950,487.68
  5. Step 5: Solve for x
    x = 101,457,950,487.68/363,438.96
  6. Step 6: Final answer
    x = 279,160.91

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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.