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Finding the Fourth Proportional to 519,769.20, 779,704.83 and 216,100.62

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Solution

The fourth proportional to 519,769.20, 779,704.83 and 216,100.62 is: 324,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,769.20 : 779,704.83 = 216,100.62 : x
  2. Step 2: Convert to fraction form
    519,769.20/779,704.83 = 216,100.62/x
  3. Step 3: Cross multiply
    519,769.20x = 779,704.83 × 216,100.62
  4. Step 4: Simplify right side
    519,769.20x = 168,494,697,180.00
  5. Step 5: Solve for x
    x = 168,494,697,180.00/519,769.20
  6. Step 6: Final answer
    x = 324,172.15

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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.