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Finding the Fourth Proportional to 3,969,458.02, 5,952,584.31 and 1,539,331.78

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Solution

The fourth proportional to 3,969,458.02, 5,952,584.31 and 1,539,331.78 is: 2,308,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,458.02 : 5,952,584.31 = 1,539,331.78 : x
  2. Step 2: Convert to fraction form
    3,969,458.02/5,952,584.31 = 1,539,331.78/x
  3. Step 3: Cross multiply
    3,969,458.02x = 5,952,584.31 × 1,539,331.78
  4. Step 4: Simplify right side
    3,969,458.02x = 9,163,002,201,512.37
  5. Step 5: Solve for x
    x = 9,163,002,201,512.37/3,969,458.02
  6. Step 6: Final answer
    x = 2,308,376.14

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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.