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Finding the Fourth Proportional to 472,119.39, 708,388.38 and 247,426.38

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Solution

The fourth proportional to 472,119.39, 708,388.38 and 247,426.38 is: 371,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,119.39 : 708,388.38 = 247,426.38 : x
  2. Step 2: Convert to fraction form
    472,119.39/708,388.38 = 247,426.38/x
  3. Step 3: Cross multiply
    472,119.39x = 708,388.38 × 247,426.38
  4. Step 4: Simplify right side
    472,119.39x = 175,273,972,497.46
  5. Step 5: Solve for x
    x = 175,273,972,497.46/472,119.39
  6. Step 6: Final answer
    x = 371,249.26

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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.