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Finding the Fourth Proportional to 263,438.80, 394,874.80 and 113,749.59

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Solution

The fourth proportional to 263,438.80, 394,874.80 and 113,749.59 is: 170,502.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,438.80 : 394,874.80 = 113,749.59 : x
  2. Step 2: Convert to fraction form
    263,438.80/394,874.80 = 113,749.59/x
  3. Step 3: Cross multiply
    263,438.80x = 394,874.80 × 113,749.59
  4. Step 4: Simplify right side
    263,438.80x = 44,916,846,601.33
  5. Step 5: Solve for x
    x = 44,916,846,601.33/263,438.80
  6. Step 6: Final answer
    x = 170,502.02

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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.