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Finding the Fourth Proportional to 483,996.50, 667,887.66 and 269,131.95

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Solution

The fourth proportional to 483,996.50, 667,887.66 and 269,131.95 is: 371,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,996.50 : 667,887.66 = 269,131.95 : x
  2. Step 2: Convert to fraction form
    483,996.50/667,887.66 = 269,131.95/x
  3. Step 3: Cross multiply
    483,996.50x = 667,887.66 × 269,131.95
  4. Step 4: Simplify right side
    483,996.50x = 179,749,908,316.74
  5. Step 5: Solve for x
    x = 179,749,908,316.74/483,996.50
  6. Step 6: Final answer
    x = 371,386.79

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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.