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Finding the Fourth Proportional to 297,605.79, 445,942.12 and 253,049.31

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Solution

The fourth proportional to 297,605.79, 445,942.12 and 253,049.31 is: 379,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,605.79 : 445,942.12 = 253,049.31 : x
  2. Step 2: Convert to fraction form
    297,605.79/445,942.12 = 253,049.31/x
  3. Step 3: Cross multiply
    297,605.79x = 445,942.12 × 253,049.31
  4. Step 4: Simplify right side
    297,605.79x = 112,845,345,765.94
  5. Step 5: Solve for x
    x = 112,845,345,765.94/297,605.79
  6. Step 6: Final answer
    x = 379,177.25

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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.