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Finding the Fourth Proportional to 543,958.92, 815,938.26 and 169,981.92

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Solution

The fourth proportional to 543,958.92, 815,938.26 and 169,981.92 is: 254,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,958.92 : 815,938.26 = 169,981.92 : x
  2. Step 2: Convert to fraction form
    543,958.92/815,938.26 = 169,981.92/x
  3. Step 3: Cross multiply
    543,958.92x = 815,938.26 × 169,981.92
  4. Step 4: Simplify right side
    543,958.92x = 138,694,752,036.26
  5. Step 5: Solve for x
    x = 138,694,752,036.26/543,958.92
  6. Step 6: Final answer
    x = 254,972.84

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Double scale
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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.