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Finding the Fourth Proportional to 358,755.20, 538,132.80 and 226,044.80

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Solution

The fourth proportional to 358,755.20, 538,132.80 and 226,044.80 is: 339,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,755.20 : 538,132.80 = 226,044.80 : x
  2. Step 2: Convert to fraction form
    358,755.20/538,132.80 = 226,044.80/x
  3. Step 3: Cross multiply
    358,755.20x = 538,132.80 × 226,044.80
  4. Step 4: Simplify right side
    358,755.20x = 121,642,121,149.44
  5. Step 5: Solve for x
    x = 121,642,121,149.44/358,755.20
  6. Step 6: Final answer
    x = 339,067.20

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1.5x scale

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.