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Finding the Fourth Proportional to 379,253.20, 523,371.20 and 207,173.52

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Solution

The fourth proportional to 379,253.20, 523,371.20 and 207,173.52 is: 285,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,253.20 : 523,371.20 = 207,173.52 : x
  2. Step 2: Convert to fraction form
    379,253.20/523,371.20 = 207,173.52/x
  3. Step 3: Cross multiply
    379,253.20x = 523,371.20 × 207,173.52
  4. Step 4: Simplify right side
    379,253.20x = 108,428,653,770.62
  5. Step 5: Solve for x
    x = 108,428,653,770.62/379,253.20
  6. Step 6: Final answer
    x = 285,900.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.