Home / 681,041.88-939,837.78-394,728.04

Finding the Fourth Proportional to 681,041.88, 939,837.78 and 394,728.04

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Solution

The fourth proportional to 681,041.88, 939,837.78 and 394,728.04 is: 544,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,041.88 : 939,837.78 = 394,728.04 : x
  2. Step 2: Convert to fraction form
    681,041.88/939,837.78 = 394,728.04/x
  3. Step 3: Cross multiply
    681,041.88x = 939,837.78 × 394,728.04
  4. Step 4: Simplify right side
    681,041.88x = 370,980,324,817.35
  5. Step 5: Solve for x
    x = 370,980,324,817.35/681,041.88
  6. Step 6: Final answer
    x = 544,724.69

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1.5x scale

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.