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Finding the Fourth Proportional to 543,237.20, 814,932.60 and 169,221.20

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Solution

The fourth proportional to 543,237.20, 814,932.60 and 169,221.20 is: 253,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,237.20 : 814,932.60 = 169,221.20 : x
  2. Step 2: Convert to fraction form
    543,237.20/814,932.60 = 169,221.20/x
  3. Step 3: Cross multiply
    543,237.20x = 814,932.60 × 169,221.20
  4. Step 4: Simplify right side
    543,237.20x = 137,903,872,491.12
  5. Step 5: Solve for x
    x = 137,903,872,491.12/543,237.20
  6. Step 6: Final answer
    x = 253,855.72

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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.