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Finding the Fourth Proportional to 363,402.87, 501,490.89 and 202,257.96

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Solution

The fourth proportional to 363,402.87, 501,490.89 and 202,257.96 is: 279,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,402.87 : 501,490.89 = 202,257.96 : x
  2. Step 2: Convert to fraction form
    363,402.87/501,490.89 = 202,257.96/x
  3. Step 3: Cross multiply
    363,402.87x = 501,490.89 × 202,257.96
  4. Step 4: Simplify right side
    363,402.87x = 101,430,524,369.98
  5. Step 5: Solve for x
    x = 101,430,524,369.98/363,402.87
  6. Step 6: Final answer
    x = 279,113.16

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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.