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Finding the Fourth Proportional to 4,979,791.22, 7,469,951.71 and 1,568,344.60

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Solution

The fourth proportional to 4,979,791.22, 7,469,951.71 and 1,568,344.60 is: 2,352,600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979,791.22 : 7,469,951.71 = 1,568,344.60 : x
  2. Step 2: Convert to fraction form
    4,979,791.22/7,469,951.71 = 1,568,344.60/x
  3. Step 3: Cross multiply
    4,979,791.22x = 7,469,951.71 × 1,568,344.60
  4. Step 4: Simplify right side
    4,979,791.22x = 11,715,458,392,978.01
  5. Step 5: Solve for x
    x = 11,715,458,392,978.01/4,979,791.22
  6. Step 6: Final answer
    x = 2,352,600.31

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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.