Home / 1,253,143.16-1,729,339.30-680,183.46

Finding the Fourth Proportional to 1,253,143.16, 1,729,339.30 and 680,183.46

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Solution

The fourth proportional to 1,253,143.16, 1,729,339.30 and 680,183.46 is: 938,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,143.16 : 1,729,339.30 = 680,183.46 : x
  2. Step 2: Convert to fraction form
    1,253,143.16/1,729,339.30 = 680,183.46/x
  3. Step 3: Cross multiply
    1,253,143.16x = 1,729,339.30 × 680,183.46
  4. Step 4: Simplify right side
    1,253,143.16x = 1,176,267,988,587.98
  5. Step 5: Solve for x
    x = 1,176,267,988,587.98/1,253,143.16
  6. Step 6: Final answer
    x = 938,654.12

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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.