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Finding the Fourth Proportional to 996,168.24, 1,374,709.14 and 543,456

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Solution

The fourth proportional to 996,168.24, 1,374,709.14 and 543,456 is: 749,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,168.24 : 1,374,709.14 = 543,456 : x
  2. Step 2: Convert to fraction form
    996,168.24/1,374,709.14 = 543,456/x
  3. Step 3: Cross multiply
    996,168.24x = 1,374,709.14 × 543,456
  4. Step 4: Simplify right side
    996,168.24x = 747,093,930,387.84
  5. Step 5: Solve for x
    x = 747,093,930,387.84/996,168.24
  6. Step 6: Final answer
    x = 749,967.63

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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.