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Finding the Fourth Proportional to 3,452,978.11, 5,179,866.96 and 1,147,677.13

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Solution

The fourth proportional to 3,452,978.11, 5,179,866.96 and 1,147,677.13 is: 1,721,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452,978.11 : 5,179,866.96 = 1,147,677.13 : x
  2. Step 2: Convert to fraction form
    3,452,978.11/5,179,866.96 = 1,147,677.13/x
  3. Step 3: Cross multiply
    3,452,978.11x = 5,179,866.96 × 1,147,677.13
  4. Step 4: Simplify right side
    3,452,978.11x = 5,944,814,814,796.90
  5. Step 5: Solve for x
    x = 5,944,814,814,796.90/3,452,978.11
  6. Step 6: Final answer
    x = 1,721,648.57

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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.