Home / 579,442,067.70-869,163,101.55-443,393,171.70

Finding the Fourth Proportional to 579,442,067.70, 869,163,101.55 and 443,393,171.70

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Solution

The fourth proportional to 579,442,067.70, 869,163,101.55 and 443,393,171.70 is: 665,089,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,442,067.70 : 869,163,101.55 = 443,393,171.70 : x
  2. Step 2: Convert to fraction form
    579,442,067.70/869,163,101.55 = 443,393,171.70/x
  3. Step 3: Cross multiply
    579,442,067.70x = 869,163,101.55 × 443,393,171.70
  4. Step 4: Simplify right side
    579,442,067.70x = 385,380,984,320,863,680
  5. Step 5: Solve for x
    x = 385,380,984,320,863,680/579,442,067.70
  6. Step 6: Final answer
    x = 665,089,757.55

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Double scale
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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.