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Finding the Fourth Proportional to 998,574, 1,378,037.04 and 545,865

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Solution

The fourth proportional to 998,574, 1,378,037.04 and 545,865 is: 753,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,574 : 1,378,037.04 = 545,865 : x
  2. Step 2: Convert to fraction form
    998,574/1,378,037.04 = 545,865/x
  3. Step 3: Cross multiply
    998,574x = 1,378,037.04 × 545,865
  4. Step 4: Simplify right side
    998,574x = 752,222,188,839.60
  5. Step 5: Solve for x
    x = 752,222,188,839.60/998,574
  6. Step 6: Final answer
    x = 753,296.39

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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.