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Finding the Fourth Proportional to 418,114.56, 576,998.70 and 227,127.90

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Solution

The fourth proportional to 418,114.56, 576,998.70 and 227,127.90 is: 313,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,114.56 : 576,998.70 = 227,127.90 : x
  2. Step 2: Convert to fraction form
    418,114.56/576,998.70 = 227,127.90/x
  3. Step 3: Cross multiply
    418,114.56x = 576,998.70 × 227,127.90
  4. Step 4: Simplify right side
    418,114.56x = 131,052,503,033.73
  5. Step 5: Solve for x
    x = 131,052,503,033.73/418,114.56
  6. Step 6: Final answer
    x = 313,436.83

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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.