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Finding the Fourth Proportional to 323,461.20, 485,191.80 and 244,729.20

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Solution

The fourth proportional to 323,461.20, 485,191.80 and 244,729.20 is: 367,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,461.20 : 485,191.80 = 244,729.20 : x
  2. Step 2: Convert to fraction form
    323,461.20/485,191.80 = 244,729.20/x
  3. Step 3: Cross multiply
    323,461.20x = 485,191.80 × 244,729.20
  4. Step 4: Simplify right side
    323,461.20x = 118,740,601,060.56
  5. Step 5: Solve for x
    x = 118,740,601,060.56/323,461.20
  6. Step 6: Final answer
    x = 367,093.80

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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.