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Finding the Fourth Proportional to 664,577,672.60, 996,866,508.90 and 377,923,208.60

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Solution

The fourth proportional to 664,577,672.60, 996,866,508.90 and 377,923,208.60 is: 566,884,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,577,672.60 : 996,866,508.90 = 377,923,208.60 : x
  2. Step 2: Convert to fraction form
    664,577,672.60/996,866,508.90 = 377,923,208.60/x
  3. Step 3: Cross multiply
    664,577,672.60x = 996,866,508.90 × 377,923,208.60
  4. Step 4: Simplify right side
    664,577,672.60x = 376,738,989,589,368,448
  5. Step 5: Solve for x
    x = 376,738,989,589,368,448/664,577,672.60
  6. Step 6: Final answer
    x = 566,884,812.90

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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.