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Finding the Fourth Proportional to 531,563,295.90, 797,344,943.85 and 143,385,375.90

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Solution

The fourth proportional to 531,563,295.90, 797,344,943.85 and 143,385,375.90 is: 215,078,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,563,295.90 : 797,344,943.85 = 143,385,375.90 : x
  2. Step 2: Convert to fraction form
    531,563,295.90/797,344,943.85 = 143,385,375.90/x
  3. Step 3: Cross multiply
    531,563,295.90x = 797,344,943.85 × 143,385,375.90
  4. Step 4: Simplify right side
    531,563,295.90x = 114,327,604,495,896,656
  5. Step 5: Solve for x
    x = 114,327,604,495,896,656/531,563,295.90
  6. Step 6: Final answer
    x = 215,078,063.85

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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.