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Finding the Fourth Proportional to 404,732.60, 607,098.90 and 218,108.60

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Solution

The fourth proportional to 404,732.60, 607,098.90 and 218,108.60 is: 327,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,732.60 : 607,098.90 = 218,108.60 : x
  2. Step 2: Convert to fraction form
    404,732.60/607,098.90 = 218,108.60/x
  3. Step 3: Cross multiply
    404,732.60x = 607,098.90 × 218,108.60
  4. Step 4: Simplify right side
    404,732.60x = 132,413,491,140.54
  5. Step 5: Solve for x
    x = 132,413,491,140.54/404,732.60
  6. Step 6: Final answer
    x = 327,162.90

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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.