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Finding the Fourth Proportional to 3,198,758.60, 4,798,978.06 and 1,149,625.96

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Solution

The fourth proportional to 3,198,758.60, 4,798,978.06 and 1,149,625.96 is: 1,724,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198,758.60 : 4,798,978.06 = 1,149,625.96 : x
  2. Step 2: Convert to fraction form
    3,198,758.60/4,798,978.06 = 1,149,625.96/x
  3. Step 3: Cross multiply
    3,198,758.60x = 4,798,978.06 × 1,149,625.96
  4. Step 4: Simplify right side
    3,198,758.60x = 5,517,029,762,120.50
  5. Step 5: Solve for x
    x = 5,517,029,762,120.50/3,198,758.60
  6. Step 6: Final answer
    x = 1,724,740.90

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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.