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Finding the Fourth Proportional to 417,561.60, 576,233.28 and 247,935.36

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Solution

The fourth proportional to 417,561.60, 576,233.28 and 247,935.36 is: 342,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,561.60 : 576,233.28 = 247,935.36 : x
  2. Step 2: Convert to fraction form
    417,561.60/576,233.28 = 247,935.36/x
  3. Step 3: Cross multiply
    417,561.60x = 576,233.28 × 247,935.36
  4. Step 4: Simplify right side
    417,561.60x = 142,868,605,720.78
  5. Step 5: Solve for x
    x = 142,868,605,720.78/417,561.60
  6. Step 6: Final answer
    x = 342,149.77

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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.