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Finding the Fourth Proportional to 263,725.92, 395,801.46 and 137,404.80

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Solution

The fourth proportional to 263,725.92, 395,801.46 and 137,404.80 is: 206,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,725.92 : 395,801.46 = 137,404.80 : x
  2. Step 2: Convert to fraction form
    263,725.92/395,801.46 = 137,404.80/x
  3. Step 3: Cross multiply
    263,725.92x = 395,801.46 × 137,404.80
  4. Step 4: Simplify right side
    263,725.92x = 54,385,020,451.01
  5. Step 5: Solve for x
    x = 54,385,020,451.01/263,725.92
  6. Step 6: Final answer
    x = 206,217.96

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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.