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Finding the Fourth Proportional to 492,213.70, 738,648.60 and 225,837.10

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Solution

The fourth proportional to 492,213.70, 738,648.60 and 225,837.10 is: 338,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,213.70 : 738,648.60 = 225,837.10 : x
  2. Step 2: Convert to fraction form
    492,213.70/738,648.60 = 225,837.10/x
  3. Step 3: Cross multiply
    492,213.70x = 738,648.60 × 225,837.10
  4. Step 4: Simplify right side
    492,213.70x = 166,814,257,743.06
  5. Step 5: Solve for x
    x = 166,814,257,743.06/492,213.70
  6. Step 6: Final answer
    x = 338,906.17

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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.