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Finding the Fourth Proportional to 472,572.97, 652,189.42 and 268,687.87

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Solution

The fourth proportional to 472,572.97, 652,189.42 and 268,687.87 is: 370,811.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,572.97 : 652,189.42 = 268,687.87 : x
  2. Step 2: Convert to fraction form
    472,572.97/652,189.42 = 268,687.87/x
  3. Step 3: Cross multiply
    472,572.97x = 652,189.42 × 268,687.87
  4. Step 4: Simplify right side
    472,572.97x = 175,235,384,801.72
  5. Step 5: Solve for x
    x = 175,235,384,801.72/472,572.97
  6. Step 6: Final answer
    x = 370,811.28

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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.