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Finding the Fourth Proportional to 681,414.44, 940,339.20 and 375,519.14

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Solution

The fourth proportional to 681,414.44, 940,339.20 and 375,519.14 is: 518,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,414.44 : 940,339.20 = 375,519.14 : x
  2. Step 2: Convert to fraction form
    681,414.44/940,339.20 = 375,519.14/x
  3. Step 3: Cross multiply
    681,414.44x = 940,339.20 × 375,519.14
  4. Step 4: Simplify right side
    681,414.44x = 353,115,367,692.29
  5. Step 5: Solve for x
    x = 353,115,367,692.29/681,414.44
  6. Step 6: Final answer
    x = 518,209.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.