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Finding the Fourth Proportional to 506,103.40, 758,936.40 and 253,286.20

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Solution

The fourth proportional to 506,103.40, 758,936.40 and 253,286.20 is: 379,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,103.40 : 758,936.40 = 253,286.20 : x
  2. Step 2: Convert to fraction form
    506,103.40/758,936.40 = 253,286.20/x
  3. Step 3: Cross multiply
    506,103.40x = 758,936.40 × 253,286.20
  4. Step 4: Simplify right side
    506,103.40x = 192,228,116,797.68
  5. Step 5: Solve for x
    x = 192,228,116,797.68/506,103.40
  6. Step 6: Final answer
    x = 379,819.85

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Similar ratio
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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.