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Finding the Fourth Proportional to 625,687.80, 938,726.10 and 246,656.40

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Solution

The fourth proportional to 625,687.80, 938,726.10 and 246,656.40 is: 370,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,687.80 : 938,726.10 = 246,656.40 : x
  2. Step 2: Convert to fraction form
    625,687.80/938,726.10 = 246,656.40/x
  3. Step 3: Cross multiply
    625,687.80x = 938,726.10 × 246,656.40
  4. Step 4: Simplify right side
    625,687.80x = 231,542,800,412.04
  5. Step 5: Solve for x
    x = 231,542,800,412.04/625,687.80
  6. Step 6: Final answer
    x = 370,061.24

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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.