Home / 263,019.28-394,578.42-85,577.04

Finding the Fourth Proportional to 263,019.28, 394,578.42 and 85,577.04

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Solution

The fourth proportional to 263,019.28, 394,578.42 and 85,577.04 is: 128,381.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,019.28 : 394,578.42 = 85,577.04 : x
  2. Step 2: Convert to fraction form
    263,019.28/394,578.42 = 85,577.04/x
  3. Step 3: Cross multiply
    263,019.28x = 394,578.42 × 85,577.04
  4. Step 4: Simplify right side
    263,019.28x = 33,766,853,231.48
  5. Step 5: Solve for x
    x = 33,766,853,231.48/263,019.28
  6. Step 6: Final answer
    x = 128,381.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.