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Finding the Fourth Proportional to 263,270.80, 394,906.20 and 259,334.20

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Solution

The fourth proportional to 263,270.80, 394,906.20 and 259,334.20 is: 389,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,270.80 : 394,906.20 = 259,334.20 : x
  2. Step 2: Convert to fraction form
    263,270.80/394,906.20 = 259,334.20/x
  3. Step 3: Cross multiply
    263,270.80x = 394,906.20 × 259,334.20
  4. Step 4: Simplify right side
    263,270.80x = 102,412,683,452.04
  5. Step 5: Solve for x
    x = 102,412,683,452.04/263,270.80
  6. Step 6: Final answer
    x = 389,001.30

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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.