Home / 681,041.22-939,836.84-394,727.38

Finding the Fourth Proportional to 681,041.22, 939,836.84 and 394,727.38

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Solution

The fourth proportional to 681,041.22, 939,836.84 and 394,727.38 is: 544,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,041.22 : 939,836.84 = 394,727.38 : x
  2. Step 2: Convert to fraction form
    681,041.22/939,836.84 = 394,727.38/x
  3. Step 3: Cross multiply
    681,041.22x = 939,836.84 × 394,727.38
  4. Step 4: Simplify right side
    681,041.22x = 370,979,337,991.89
  5. Step 5: Solve for x
    x = 370,979,337,991.89/681,041.22
  6. Step 6: Final answer
    x = 544,723.76

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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.