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Finding the Fourth Proportional to 472,132.83, 708,408.38 and 247,439.54

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Solution

The fourth proportional to 472,132.83, 708,408.38 and 247,439.54 is: 371,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,132.83 : 708,408.38 = 247,439.54 : x
  2. Step 2: Convert to fraction form
    472,132.83/708,408.38 = 247,439.54/x
  3. Step 3: Cross multiply
    472,132.83x = 708,408.38 × 247,439.54
  4. Step 4: Simplify right side
    472,132.83x = 175,288,246,068.97
  5. Step 5: Solve for x
    x = 175,288,246,068.97/472,132.83
  6. Step 6: Final answer
    x = 371,268.92

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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.