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Finding the Fourth Proportional to 576,914,843.70, 865,372,265.55 and 167,984,334.90

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Solution

The fourth proportional to 576,914,843.70, 865,372,265.55 and 167,984,334.90 is: 251,976,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,914,843.70 : 865,372,265.55 = 167,984,334.90 : x
  2. Step 2: Convert to fraction form
    576,914,843.70/865,372,265.55 = 167,984,334.90/x
  3. Step 3: Cross multiply
    576,914,843.70x = 865,372,265.55 × 167,984,334.90
  4. Step 4: Simplify right side
    576,914,843.70x = 145,368,984,469,322,944
  5. Step 5: Solve for x
    x = 145,368,984,469,322,944/576,914,843.70
  6. Step 6: Final answer
    x = 251,976,502.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.