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Finding the Fourth Proportional to 6,340,711.88, 8,750,231.88 and 3,726,513.92

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Solution

The fourth proportional to 6,340,711.88, 8,750,231.88 and 3,726,513.92 is: 5,142,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340,711.88 : 8,750,231.88 = 3,726,513.92 : x
  2. Step 2: Convert to fraction form
    6,340,711.88/8,750,231.88 = 3,726,513.92/x
  3. Step 3: Cross multiply
    6,340,711.88x = 8,750,231.88 × 3,726,513.92
  4. Step 4: Simplify right side
    6,340,711.88x = 32,607,860,904,047.77
  5. Step 5: Solve for x
    x = 32,607,860,904,047.77/6,340,711.88
  6. Step 6: Final answer
    x = 5,142,618.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.