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Finding the Fourth Proportional to 472,214.91, 708,531.05 and 247,521.62

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Solution

The fourth proportional to 472,214.91, 708,531.05 and 247,521.62 is: 371,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,214.91 : 708,531.05 = 247,521.62 : x
  2. Step 2: Convert to fraction form
    472,214.91/708,531.05 = 247,521.62/x
  3. Step 3: Cross multiply
    472,214.91x = 708,531.05 × 247,521.62
  4. Step 4: Simplify right side
    472,214.91x = 175,376,752,078.69
  5. Step 5: Solve for x
    x = 175,376,752,078.69/472,214.91
  6. Step 6: Final answer
    x = 371,391.81

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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.