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Finding the Fourth Proportional to 465,785.90, 698,678.85 and 133,361.90

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Solution

The fourth proportional to 465,785.90, 698,678.85 and 133,361.90 is: 200,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,785.90 : 698,678.85 = 133,361.90 : x
  2. Step 2: Convert to fraction form
    465,785.90/698,678.85 = 133,361.90/x
  3. Step 3: Cross multiply
    465,785.90x = 698,678.85 × 133,361.90
  4. Step 4: Simplify right side
    465,785.90x = 93,177,138,925.82
  5. Step 5: Solve for x
    x = 93,177,138,925.82/465,785.90
  6. Step 6: Final answer
    x = 200,042.85

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Similar ratio
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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.