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Finding the Fourth Proportional to 331,394.44, 496,401.97 and 210,854.29

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Solution

The fourth proportional to 331,394.44, 496,401.97 and 210,854.29 is: 315,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,394.44 : 496,401.97 = 210,854.29 : x
  2. Step 2: Convert to fraction form
    331,394.44/496,401.97 = 210,854.29/x
  3. Step 3: Cross multiply
    331,394.44x = 496,401.97 × 210,854.29
  4. Step 4: Simplify right side
    331,394.44x = 104,668,484,938.95
  5. Step 5: Solve for x
    x = 104,668,484,938.95/331,394.44
  6. Step 6: Final answer
    x = 315,842.61

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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.