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Finding the Fourth Proportional to 3,279,115.26, 4,918,722.96 and 1,480,745.16

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Solution

The fourth proportional to 3,279,115.26, 4,918,722.96 and 1,480,745.16 is: 2,221,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279,115.26 : 4,918,722.96 = 1,480,745.16 : x
  2. Step 2: Convert to fraction form
    3,279,115.26/4,918,722.96 = 1,480,745.16/x
  3. Step 3: Cross multiply
    3,279,115.26x = 4,918,722.96 × 1,480,745.16
  4. Step 4: Simplify right side
    3,279,115.26x = 7,283,375,216,400.87
  5. Step 5: Solve for x
    x = 7,283,375,216,400.87/3,279,115.26
  6. Step 6: Final answer
    x = 2,221,140.35

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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.