Home / 681,020.66-939,665.94-394,523.66

Finding the Fourth Proportional to 681,020.66, 939,665.94 and 394,523.66

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Solution

The fourth proportional to 681,020.66, 939,665.94 and 394,523.66 is: 544,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,020.66 : 939,665.94 = 394,523.66 : x
  2. Step 2: Convert to fraction form
    681,020.66/939,665.94 = 394,523.66/x
  3. Step 3: Cross multiply
    681,020.66x = 939,665.94 × 394,523.66
  4. Step 4: Simplify right side
    681,020.66x = 370,720,445,826.14
  5. Step 5: Solve for x
    x = 370,720,445,826.14/681,020.66
  6. Step 6: Final answer
    x = 544,360.06

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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.