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Finding the Fourth Proportional to 508,118.28, 701,231.22 and 281,758.92

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Solution

The fourth proportional to 508,118.28, 701,231.22 and 281,758.92 is: 388,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,118.28 : 701,231.22 = 281,758.92 : x
  2. Step 2: Convert to fraction form
    508,118.28/701,231.22 = 281,758.92/x
  3. Step 3: Cross multiply
    508,118.28x = 701,231.22 × 281,758.92
  4. Step 4: Simplify right side
    508,118.28x = 197,578,151,217.48
  5. Step 5: Solve for x
    x = 197,578,151,217.48/508,118.28
  6. Step 6: Final answer
    x = 388,842.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.