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Finding the Fourth Proportional to 483,998.50, 667,890.42 and 269,133.96

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Solution

The fourth proportional to 483,998.50, 667,890.42 and 269,133.96 is: 371,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,998.50 : 667,890.42 = 269,133.96 : x
  2. Step 2: Convert to fraction form
    483,998.50/667,890.42 = 269,133.96/x
  3. Step 3: Cross multiply
    483,998.50x = 667,890.42 × 269,133.96
  4. Step 4: Simplify right side
    483,998.50x = 179,751,993,580.66
  5. Step 5: Solve for x
    x = 179,751,993,580.66/483,998.50
  6. Step 6: Final answer
    x = 371,389.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.