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Finding the Fourth Proportional to 269,656,872.90, 404,485,309.35 and 266,969,487.30

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Solution

The fourth proportional to 269,656,872.90, 404,485,309.35 and 266,969,487.30 is: 400,454,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,656,872.90 : 404,485,309.35 = 266,969,487.30 : x
  2. Step 2: Convert to fraction form
    269,656,872.90/404,485,309.35 = 266,969,487.30/x
  3. Step 3: Cross multiply
    269,656,872.90x = 404,485,309.35 × 266,969,487.30
  4. Step 4: Simplify right side
    269,656,872.90x = 107,985,235,657,551,408
  5. Step 5: Solve for x
    x = 107,985,235,657,551,408/269,656,872.90
  6. Step 6: Final answer
    x = 400,454,230.95

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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.