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Finding the Fourth Proportional to 397,251.92, 548,179.08 and 227,481.68

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Solution

The fourth proportional to 397,251.92, 548,179.08 and 227,481.68 is: 313,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,251.92 : 548,179.08 = 227,481.68 : x
  2. Step 2: Convert to fraction form
    397,251.92/548,179.08 = 227,481.68/x
  3. Step 3: Cross multiply
    397,251.92x = 548,179.08 × 227,481.68
  4. Step 4: Simplify right side
    397,251.92x = 124,700,698,059.25
  5. Step 5: Solve for x
    x = 124,700,698,059.25/397,251.92
  6. Step 6: Final answer
    x = 313,908.36

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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.