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Finding the Fourth Proportional to 322,414.40, 483,621.60 and 173,115.20

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Solution

The fourth proportional to 322,414.40, 483,621.60 and 173,115.20 is: 259,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,414.40 : 483,621.60 = 173,115.20 : x
  2. Step 2: Convert to fraction form
    322,414.40/483,621.60 = 173,115.20/x
  3. Step 3: Cross multiply
    322,414.40x = 483,621.60 × 173,115.20
  4. Step 4: Simplify right side
    322,414.40x = 83,722,250,008.32
  5. Step 5: Solve for x
    x = 83,722,250,008.32/322,414.40
  6. Step 6: Final answer
    x = 259,672.80

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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.