Home / 639,067,524.70-958,601,287.05-409,485,012.70

Finding the Fourth Proportional to 639,067,524.70, 958,601,287.05 and 409,485,012.70

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Solution

The fourth proportional to 639,067,524.70, 958,601,287.05 and 409,485,012.70 is: 614,227,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,067,524.70 : 958,601,287.05 = 409,485,012.70 : x
  2. Step 2: Convert to fraction form
    639,067,524.70/958,601,287.05 = 409,485,012.70/x
  3. Step 3: Cross multiply
    639,067,524.70x = 958,601,287.05 × 409,485,012.70
  4. Step 4: Simplify right side
    639,067,524.70x = 392,532,860,201,905,536
  5. Step 5: Solve for x
    x = 392,532,860,201,905,536/639,067,524.70
  6. Step 6: Final answer
    x = 614,227,519.05

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Similar ratio
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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.