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Finding the Fourth Proportional to 6,491,229.58, 8,910,988.72 and 5,571,862.66

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Solution

The fourth proportional to 6,491,229.58, 8,910,988.72 and 5,571,862.66 is: 7,648,906.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491,229.58 : 8,910,988.72 = 5,571,862.66 : x
  2. Step 2: Convert to fraction form
    6,491,229.58/8,910,988.72 = 5,571,862.66/x
  3. Step 3: Cross multiply
    6,491,229.58x = 8,910,988.72 × 5,571,862.66
  4. Step 4: Simplify right side
    6,491,229.58x = 49,650,805,312,649.20
  5. Step 5: Solve for x
    x = 49,650,805,312,649.20/6,491,229.58
  6. Step 6: Final answer
    x = 7,648,906.07

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.