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Finding the Fourth Proportional to 325,549,895.80, 488,324,843.70 and 264,327,892.60

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Solution

The fourth proportional to 325,549,895.80, 488,324,843.70 and 264,327,892.60 is: 396,491,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,549,895.80 : 488,324,843.70 = 264,327,892.60 : x
  2. Step 2: Convert to fraction form
    325,549,895.80/488,324,843.70 = 264,327,892.60/x
  3. Step 3: Cross multiply
    325,549,895.80x = 488,324,843.70 × 264,327,892.60
  4. Step 4: Simplify right side
    325,549,895.80x = 129,077,876,839,445,376
  5. Step 5: Solve for x
    x = 129,077,876,839,445,376/325,549,895.80
  6. Step 6: Final answer
    x = 396,491,838.90

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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.