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Finding the Fourth Proportional to 404,310.60, 606,380.85 and 204,443.10

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Solution

The fourth proportional to 404,310.60, 606,380.85 and 204,443.10 is: 306,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,310.60 : 606,380.85 = 204,443.10 : x
  2. Step 2: Convert to fraction form
    404,310.60/606,380.85 = 204,443.10/x
  3. Step 3: Cross multiply
    404,310.60x = 606,380.85 × 204,443.10
  4. Step 4: Simplify right side
    404,310.60x = 123,970,380,754.64
  5. Step 5: Solve for x
    x = 123,970,380,754.64/404,310.60
  6. Step 6: Final answer
    x = 306,621.64

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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.