Home / 681,066.74-939,872.09-394,752.90

Finding the Fourth Proportional to 681,066.74, 939,872.09 and 394,752.90

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Solution

The fourth proportional to 681,066.74, 939,872.09 and 394,752.90 is: 544,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,066.74 : 939,872.09 = 394,752.90 : x
  2. Step 2: Convert to fraction form
    681,066.74/939,872.09 = 394,752.90/x
  3. Step 3: Cross multiply
    681,066.74x = 939,872.09 × 394,752.90
  4. Step 4: Simplify right side
    681,066.74x = 371,017,233,156.56
  5. Step 5: Solve for x
    x = 371,017,233,156.56/681,066.74
  6. Step 6: Final answer
    x = 544,759.00

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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.