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Finding the Fourth Proportional to 323,505,363.60, 485,258,045.40 and 231,672,358.80

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Solution

The fourth proportional to 323,505,363.60, 485,258,045.40 and 231,672,358.80 is: 347,508,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,505,363.60 : 485,258,045.40 = 231,672,358.80 : x
  2. Step 2: Convert to fraction form
    323,505,363.60/485,258,045.40 = 231,672,358.80/x
  3. Step 3: Cross multiply
    323,505,363.60x = 485,258,045.40 × 231,672,358.80
  4. Step 4: Simplify right side
    323,505,363.60x = 112,420,876,004,495,488
  5. Step 5: Solve for x
    x = 112,420,876,004,495,488/323,505,363.60
  6. Step 6: Final answer
    x = 347,508,538.20

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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.