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Finding the Fourth Proportional to 661,738,863.90, 992,608,295.85 and 661,738,863.90

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Solution

The fourth proportional to 661,738,863.90, 992,608,295.85 and 661,738,863.90 is: 992,608,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,738,863.90 : 992,608,295.85 = 661,738,863.90 : x
  2. Step 2: Convert to fraction form
    661,738,863.90/992,608,295.85 = 661,738,863.90/x
  3. Step 3: Cross multiply
    661,738,863.90x = 992,608,295.85 × 661,738,863.90
  4. Step 4: Simplify right side
    661,738,863.90x = 656,847,485,993,494,016
  5. Step 5: Solve for x
    x = 656,847,485,993,494,016/661,738,863.90
  6. Step 6: Final answer
    x = 992,608,295.85

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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.