Home / 681,026.25-939,673.66-394,529.25

Finding the Fourth Proportional to 681,026.25, 939,673.66 and 394,529.25

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Solution

The fourth proportional to 681,026.25, 939,673.66 and 394,529.25 is: 544,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,026.25 : 939,673.66 = 394,529.25 : x
  2. Step 2: Convert to fraction form
    681,026.25/939,673.66 = 394,529.25/x
  3. Step 3: Cross multiply
    681,026.25x = 939,673.66 × 394,529.25
  4. Step 4: Simplify right side
    681,026.25x = 370,728,747,601.75
  5. Step 5: Solve for x
    x = 370,728,747,601.75/681,026.25
  6. Step 6: Final answer
    x = 544,367.78

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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.