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Finding the Fourth Proportional to 262,542.80, 394,008.60 and 173,766.80

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Solution

The fourth proportional to 262,542.80, 394,008.60 and 173,766.80 is: 260,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,542.80 : 394,008.60 = 173,766.80 : x
  2. Step 2: Convert to fraction form
    262,542.80/394,008.60 = 173,766.80/x
  3. Step 3: Cross multiply
    262,542.80x = 394,008.60 × 173,766.80
  4. Step 4: Simplify right side
    262,542.80x = 68,465,613,594.48
  5. Step 5: Solve for x
    x = 68,465,613,594.48/262,542.80
  6. Step 6: Final answer
    x = 260,778.87

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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.