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Finding the Fourth Proportional to 372,914.40, 559,371.60 and 231,196.80

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Solution

The fourth proportional to 372,914.40, 559,371.60 and 231,196.80 is: 346,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,914.40 : 559,371.60 = 231,196.80 : x
  2. Step 2: Convert to fraction form
    372,914.40/559,371.60 = 231,196.80/x
  3. Step 3: Cross multiply
    372,914.40x = 559,371.60 × 231,196.80
  4. Step 4: Simplify right side
    372,914.40x = 129,324,923,930.88
  5. Step 5: Solve for x
    x = 129,324,923,930.88/372,914.40
  6. Step 6: Final answer
    x = 346,795.20

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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.