Home / 543,949.17-815,923.60-169,972.17

Finding the Fourth Proportional to 543,949.17, 815,923.60 and 169,972.17

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Solution

The fourth proportional to 543,949.17, 815,923.60 and 169,972.17 is: 254,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,949.17 : 815,923.60 = 169,972.17 : x
  2. Step 2: Convert to fraction form
    543,949.17/815,923.60 = 169,972.17/x
  3. Step 3: Cross multiply
    543,949.17x = 815,923.60 × 169,972.17
  4. Step 4: Simplify right side
    543,949.17x = 138,684,299,916.73
  5. Step 5: Solve for x
    x = 138,684,299,916.73/543,949.17
  6. Step 6: Final answer
    x = 254,958.20

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Double scale
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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.