Home / 263,270.91-394,906.02-85,777.62

Finding the Fourth Proportional to 263,270.91, 394,906.02 and 85,777.62

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Solution

The fourth proportional to 263,270.91, 394,906.02 and 85,777.62 is: 128,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,270.91 : 394,906.02 = 85,777.62 : x
  2. Step 2: Convert to fraction form
    263,270.91/394,906.02 = 85,777.62/x
  3. Step 3: Cross multiply
    263,270.91x = 394,906.02 × 85,777.62
  4. Step 4: Simplify right side
    263,270.91x = 33,874,098,519.27
  5. Step 5: Solve for x
    x = 33,874,098,519.27/263,270.91
  6. Step 6: Final answer
    x = 128,666.32

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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.