Home / 1,691,726.40-2,536,999.38-680,586.12

Finding the Fourth Proportional to 1,691,726.40, 2,536,999.38 and 680,586.12

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Solution

The fourth proportional to 1,691,726.40, 2,536,999.38 and 680,586.12 is: 1,020,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,726.40 : 2,536,999.38 = 680,586.12 : x
  2. Step 2: Convert to fraction form
    1,691,726.40/2,536,999.38 = 680,586.12/x
  3. Step 3: Cross multiply
    1,691,726.40x = 2,536,999.38 × 680,586.12
  4. Step 4: Simplify right side
    1,691,726.40x = 1,726,646,564,476.61
  5. Step 5: Solve for x
    x = 1,726,646,564,476.61/1,691,726.40
  6. Step 6: Final answer
    x = 1,020,641.73

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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.