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Finding the Fourth Proportional to 519,950.20, 779,269.20 and 253,136.20

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Solution

The fourth proportional to 519,950.20, 779,269.20 and 253,136.20 is: 379,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,950.20 : 779,269.20 = 253,136.20 : x
  2. Step 2: Convert to fraction form
    519,950.20/779,269.20 = 253,136.20/x
  3. Step 3: Cross multiply
    519,950.20x = 779,269.20 × 253,136.20
  4. Step 4: Simplify right side
    519,950.20x = 197,261,244,065.04
  5. Step 5: Solve for x
    x = 197,261,244,065.04/519,950.20
  6. Step 6: Final answer
    x = 379,384.88

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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.