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Finding the Fourth Proportional to 453,439.80, 625,752.20 and 259,843.68

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Solution

The fourth proportional to 453,439.80, 625,752.20 and 259,843.68 is: 358,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,439.80 : 625,752.20 = 259,843.68 : x
  2. Step 2: Convert to fraction form
    453,439.80/625,752.20 = 259,843.68/x
  3. Step 3: Cross multiply
    453,439.80x = 625,752.20 × 259,843.68
  4. Step 4: Simplify right side
    453,439.80x = 162,597,753,116.88
  5. Step 5: Solve for x
    x = 162,597,753,116.88/453,439.80
  6. Step 6: Final answer
    x = 358,587.30

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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.