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Finding the Fourth Proportional to 461,231.40, 691,847.10 and 251,279.40

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Solution

The fourth proportional to 461,231.40, 691,847.10 and 251,279.40 is: 376,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,231.40 : 691,847.10 = 251,279.40 : x
  2. Step 2: Convert to fraction form
    461,231.40/691,847.10 = 251,279.40/x
  3. Step 3: Cross multiply
    461,231.40x = 691,847.10 × 251,279.40
  4. Step 4: Simplify right side
    461,231.40x = 173,846,924,179.74
  5. Step 5: Solve for x
    x = 173,846,924,179.74/461,231.40
  6. Step 6: Final answer
    x = 376,919.10

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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.