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Finding the Fourth Proportional to 472,097.13, 708,355.01 and 247,404.15

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Solution

The fourth proportional to 472,097.13, 708,355.01 and 247,404.15 is: 371,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,097.13 : 708,355.01 = 247,404.15 : x
  2. Step 2: Convert to fraction form
    472,097.13/708,355.01 = 247,404.15/x
  3. Step 3: Cross multiply
    472,097.13x = 708,355.01 × 247,404.15
  4. Step 4: Simplify right side
    472,097.13x = 175,249,967,425.64
  5. Step 5: Solve for x
    x = 175,249,967,425.64/472,097.13
  6. Step 6: Final answer
    x = 371,215.91

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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.