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Finding the Fourth Proportional to 449,824.15, 674,846.97 and 316,963.90

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Solution

The fourth proportional to 449,824.15, 674,846.97 and 316,963.90 is: 475,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,824.15 : 674,846.97 = 316,963.90 : x
  2. Step 2: Convert to fraction form
    449,824.15/674,846.97 = 316,963.90/x
  3. Step 3: Cross multiply
    449,824.15x = 674,846.97 × 316,963.90
  4. Step 4: Simplify right side
    449,824.15x = 213,902,127,514.38
  5. Step 5: Solve for x
    x = 213,902,127,514.38/449,824.15
  6. Step 6: Final answer
    x = 475,523.89

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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.