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Finding the Fourth Proportional to 524,794.20, 786,996.90 and 169,819.80

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Solution

The fourth proportional to 524,794.20, 786,996.90 and 169,819.80 is: 254,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,794.20 : 786,996.90 = 169,819.80 : x
  2. Step 2: Convert to fraction form
    524,794.20/786,996.90 = 169,819.80/x
  3. Step 3: Cross multiply
    524,794.20x = 786,996.90 × 169,819.80
  4. Step 4: Simplify right side
    524,794.20x = 133,647,656,158.62
  5. Step 5: Solve for x
    x = 133,647,656,158.62/524,794.20
  6. Step 6: Final answer
    x = 254,666.79

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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.