Home / 263,250.26-394,908.18-85,709.60

Finding the Fourth Proportional to 263,250.26, 394,908.18 and 85,709.60

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Solution

The fourth proportional to 263,250.26, 394,908.18 and 85,709.60 is: 128,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,250.26 : 394,908.18 = 85,709.60 : x
  2. Step 2: Convert to fraction form
    263,250.26/394,908.18 = 85,709.60/x
  3. Step 3: Cross multiply
    263,250.26x = 394,908.18 × 85,709.60
  4. Step 4: Simplify right side
    263,250.26x = 33,847,422,144.53
  5. Step 5: Solve for x
    x = 33,847,422,144.53/263,250.26
  6. Step 6: Final answer
    x = 128,575.08

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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.