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Finding the Fourth Proportional to 996,568.76, 1,375,264.49 and 543,859.76

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Solution

The fourth proportional to 996,568.76, 1,375,264.49 and 543,859.76 is: 750,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,568.76 : 1,375,264.49 = 543,859.76 : x
  2. Step 2: Convert to fraction form
    996,568.76/1,375,264.49 = 543,859.76/x
  3. Step 3: Cross multiply
    996,568.76x = 1,375,264.49 × 543,859.76
  4. Step 4: Simplify right side
    996,568.76x = 747,951,015,467.92
  5. Step 5: Solve for x
    x = 747,951,015,467.92/996,568.76
  6. Step 6: Final answer
    x = 750,526.25

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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.