Home / 661,607,294.40-992,410,941.60-443,929,060.80

Finding the Fourth Proportional to 661,607,294.40, 992,410,941.60 and 443,929,060.80

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Solution

The fourth proportional to 661,607,294.40, 992,410,941.60 and 443,929,060.80 is: 665,893,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,607,294.40 : 992,410,941.60 = 443,929,060.80 : x
  2. Step 2: Convert to fraction form
    661,607,294.40/992,410,941.60 = 443,929,060.80/x
  3. Step 3: Cross multiply
    661,607,294.40x = 992,410,941.60 × 443,929,060.80
  4. Step 4: Simplify right side
    661,607,294.40x = 440,560,057,232,131,648
  5. Step 5: Solve for x
    x = 440,560,057,232,131,648/661,607,294.40
  6. Step 6: Final answer
    x = 665,893,591.20

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Double scale
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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.