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Finding the Fourth Proportional to 998,583, 1,378,049.46 and 545,874

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Solution

The fourth proportional to 998,583, 1,378,049.46 and 545,874 is: 753,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,583 : 1,378,049.46 = 545,874 : x
  2. Step 2: Convert to fraction form
    998,583/1,378,049.46 = 545,874/x
  3. Step 3: Cross multiply
    998,583x = 1,378,049.46 × 545,874
  4. Step 4: Simplify right side
    998,583x = 752,241,370,928.04
  5. Step 5: Solve for x
    x = 752,241,370,928.04/998,583
  6. Step 6: Final answer
    x = 753,308.81

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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.