Home / 263,249.26-394,906.68-85,708.60

Finding the Fourth Proportional to 263,249.26, 394,906.68 and 85,708.60

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Solution

The fourth proportional to 263,249.26, 394,906.68 and 85,708.60 is: 128,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,249.26 : 394,906.68 = 85,708.60 : x
  2. Step 2: Convert to fraction form
    263,249.26/394,906.68 = 85,708.60/x
  3. Step 3: Cross multiply
    263,249.26x = 394,906.68 × 85,708.60
  4. Step 4: Simplify right side
    263,249.26x = 33,846,898,673.45
  5. Step 5: Solve for x
    x = 33,846,898,673.45/263,249.26
  6. Step 6: Final answer
    x = 128,573.58

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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.