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Finding the Fourth Proportional to 543,571.44, 815,422.01 and 262,887

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Solution

The fourth proportional to 543,571.44, 815,422.01 and 262,887 is: 394,361.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,571.44 : 815,422.01 = 262,887 : x
  2. Step 2: Convert to fraction form
    543,571.44/815,422.01 = 262,887/x
  3. Step 3: Cross multiply
    543,571.44x = 815,422.01 × 262,887
  4. Step 4: Simplify right side
    543,571.44x = 214,363,844,628.44
  5. Step 5: Solve for x
    x = 214,363,844,628.44/543,571.44
  6. Step 6: Final answer
    x = 394,361.86

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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.