Home / 681,041.19-939,836.80-394,727.35

Finding the Fourth Proportional to 681,041.19, 939,836.80 and 394,727.35

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Solution

The fourth proportional to 681,041.19, 939,836.80 and 394,727.35 is: 544,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,041.19 : 939,836.80 = 394,727.35 : x
  2. Step 2: Convert to fraction form
    681,041.19/939,836.80 = 394,727.35/x
  3. Step 3: Cross multiply
    681,041.19x = 939,836.80 × 394,727.35
  4. Step 4: Simplify right side
    681,041.19x = 370,979,289,496.48
  5. Step 5: Solve for x
    x = 370,979,289,496.48/681,041.19
  6. Step 6: Final answer
    x = 544,723.72

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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.