Home / 1,253,203.40-1,729,414.86-680,238.56

Finding the Fourth Proportional to 1,253,203.40, 1,729,414.86 and 680,238.56

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Solution

The fourth proportional to 1,253,203.40, 1,729,414.86 and 680,238.56 is: 938,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,203.40 : 1,729,414.86 = 680,238.56 : x
  2. Step 2: Convert to fraction form
    1,253,203.40/1,729,414.86 = 680,238.56/x
  3. Step 3: Cross multiply
    1,253,203.40x = 1,729,414.86 × 680,238.56
  4. Step 4: Simplify right side
    1,253,203.40x = 1,176,414,674,009.00
  5. Step 5: Solve for x
    x = 1,176,414,674,009.00/1,253,203.40
  6. Step 6: Final answer
    x = 938,726.05

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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.