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Finding the Fourth Proportional to 347,921.92, 479,801.64 and 227,024.56

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Solution

The fourth proportional to 347,921.92, 479,801.64 and 227,024.56 is: 313,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,921.92 : 479,801.64 = 227,024.56 : x
  2. Step 2: Convert to fraction form
    347,921.92/479,801.64 = 227,024.56/x
  3. Step 3: Cross multiply
    347,921.92x = 479,801.64 × 227,024.56
  4. Step 4: Simplify right side
    347,921.92x = 108,926,756,208.28
  5. Step 5: Solve for x
    x = 108,926,756,208.28/347,921.92
  6. Step 6: Final answer
    x = 313,078.16

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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.