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Finding the Fourth Proportional to 417,404.62, 625,553.34 and 217,892.82

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Solution

The fourth proportional to 417,404.62, 625,553.34 and 217,892.82 is: 326,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,404.62 : 625,553.34 = 217,892.82 : x
  2. Step 2: Convert to fraction form
    417,404.62/625,553.34 = 217,892.82/x
  3. Step 3: Cross multiply
    417,404.62x = 625,553.34 × 217,892.82
  4. Step 4: Simplify right side
    417,404.62x = 136,303,581,313.02
  5. Step 5: Solve for x
    x = 136,303,581,313.02/417,404.62
  6. Step 6: Final answer
    x = 326,550.25

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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.