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Finding the Fourth Proportional to 512,496.99, 768,487.41 and 170,819.42

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Solution

The fourth proportional to 512,496.99, 768,487.41 and 170,819.42 is: 256,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,496.99 : 768,487.41 = 170,819.42 : x
  2. Step 2: Convert to fraction form
    512,496.99/768,487.41 = 170,819.42/x
  3. Step 3: Cross multiply
    512,496.99x = 768,487.41 × 170,819.42
  4. Step 4: Simplify right side
    512,496.99x = 131,272,569,811.07
  5. Step 5: Solve for x
    x = 131,272,569,811.07/512,496.99
  6. Step 6: Final answer
    x = 256,143.10

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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.