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Finding the Fourth Proportional to 404,257.20, 606,731.40 and 179,962.80

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Solution

The fourth proportional to 404,257.20, 606,731.40 and 179,962.80 is: 270,098.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,257.20 : 606,731.40 = 179,962.80 : x
  2. Step 2: Convert to fraction form
    404,257.20/606,731.40 = 179,962.80/x
  3. Step 3: Cross multiply
    404,257.20x = 606,731.40 × 179,962.80
  4. Step 4: Simplify right side
    404,257.20x = 109,189,081,591.92
  5. Step 5: Solve for x
    x = 109,189,081,591.92/404,257.20
  6. Step 6: Final answer
    x = 270,098.05

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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.