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Finding the Fourth Proportional to 492,080,757.70, 738,121,136.55 and 492,080,757.70

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Solution

The fourth proportional to 492,080,757.70, 738,121,136.55 and 492,080,757.70 is: 738,121,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,080,757.70 : 738,121,136.55 = 492,080,757.70 : x
  2. Step 2: Convert to fraction form
    492,080,757.70/738,121,136.55 = 492,080,757.70/x
  3. Step 3: Cross multiply
    492,080,757.70x = 738,121,136.55 × 492,080,757.70
  4. Step 4: Simplify right side
    492,080,757.70x = 363,215,208,147,909,120
  5. Step 5: Solve for x
    x = 363,215,208,147,909,120/492,080,757.70
  6. Step 6: Final answer
    x = 738,121,136.55

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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.