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Finding the Fourth Proportional to 417,691.86, 575,979.06 and 247,893.18

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Solution

The fourth proportional to 417,691.86, 575,979.06 and 247,893.18 is: 341,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,691.86 : 575,979.06 = 247,893.18 : x
  2. Step 2: Convert to fraction form
    417,691.86/575,979.06 = 247,893.18/x
  3. Step 3: Cross multiply
    417,691.86x = 575,979.06 × 247,893.18
  4. Step 4: Simplify right side
    417,691.86x = 142,781,280,796.81
  5. Step 5: Solve for x
    x = 142,781,280,796.81/417,691.86
  6. Step 6: Final answer
    x = 341,834.00

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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.