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Finding the Fourth Proportional to 543,618.20, 815,427.30 and 169,592.60

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Solution

The fourth proportional to 543,618.20, 815,427.30 and 169,592.60 is: 254,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,618.20 : 815,427.30 = 169,592.60 : x
  2. Step 2: Convert to fraction form
    543,618.20/815,427.30 = 169,592.60/x
  3. Step 3: Cross multiply
    543,618.20x = 815,427.30 × 169,592.60
  4. Step 4: Simplify right side
    543,618.20x = 138,290,435,917.98
  5. Step 5: Solve for x
    x = 138,290,435,917.98/543,618.20
  6. Step 6: Final answer
    x = 254,388.90

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Similar ratio
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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.