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Finding the Fourth Proportional to 681,150.92, 940,017.43 and 379,344.92

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Solution

The fourth proportional to 681,150.92, 940,017.43 and 379,344.92 is: 523,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,150.92 : 940,017.43 = 379,344.92 : x
  2. Step 2: Convert to fraction form
    681,150.92/940,017.43 = 379,344.92/x
  3. Step 3: Cross multiply
    681,150.92x = 940,017.43 × 379,344.92
  4. Step 4: Simplify right side
    681,150.92x = 356,590,836,781.96
  5. Step 5: Solve for x
    x = 356,590,836,781.96/681,150.92
  6. Step 6: Final answer
    x = 523,512.23

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Double scale
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Similar ratio
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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.