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Finding the Fourth Proportional to 451,998.38, 674,004.11 and 447,941.50

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Solution

The fourth proportional to 451,998.38, 674,004.11 and 447,941.50 is: 667,954.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,998.38 : 674,004.11 = 447,941.50 : x
  2. Step 2: Convert to fraction form
    451,998.38/674,004.11 = 447,941.50/x
  3. Step 3: Cross multiply
    451,998.38x = 674,004.11 × 447,941.50
  4. Step 4: Simplify right side
    451,998.38x = 301,914,412,039.57
  5. Step 5: Solve for x
    x = 301,914,412,039.57/451,998.38
  6. Step 6: Final answer
    x = 667,954.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.