Home / 1,253,162.70-1,729,395.81-680,201.64

Finding the Fourth Proportional to 1,253,162.70, 1,729,395.81 and 680,201.64

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Solution

The fourth proportional to 1,253,162.70, 1,729,395.81 and 680,201.64 is: 938,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,162.70 : 1,729,395.81 = 680,201.64 : x
  2. Step 2: Convert to fraction form
    1,253,162.70/1,729,395.81 = 680,201.64/x
  3. Step 3: Cross multiply
    1,253,162.70x = 1,729,395.81 × 680,201.64
  4. Step 4: Simplify right side
    1,253,162.70x = 1,176,337,866,171.13
  5. Step 5: Solve for x
    x = 1,176,337,866,171.13/1,253,162.70
  6. Step 6: Final answer
    x = 938,695.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.