Home / 681,041.35-939,837.02-394,727.51

Finding the Fourth Proportional to 681,041.35, 939,837.02 and 394,727.51

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Solution

The fourth proportional to 681,041.35, 939,837.02 and 394,727.51 is: 544,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,041.35 : 939,837.02 = 394,727.51 : x
  2. Step 2: Convert to fraction form
    681,041.35/939,837.02 = 394,727.51/x
  3. Step 3: Cross multiply
    681,041.35x = 939,837.02 × 394,727.51
  4. Step 4: Simplify right side
    681,041.35x = 370,979,524,736.78
  5. Step 5: Solve for x
    x = 370,979,524,736.78/681,041.35
  6. Step 6: Final answer
    x = 544,723.94

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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.