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Finding the Fourth Proportional to 998,591.22, 1,378,054 and 545,882.22

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Solution

The fourth proportional to 998,591.22, 1,378,054 and 545,882.22 is: 753,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,591.22 : 1,378,054 = 545,882.22 : x
  2. Step 2: Convert to fraction form
    998,591.22/1,378,054 = 545,882.22/x
  3. Step 3: Cross multiply
    998,591.22x = 1,378,054 × 545,882.22
  4. Step 4: Simplify right side
    998,591.22x = 752,255,176,799.88
  5. Step 5: Solve for x
    x = 752,255,176,799.88/998,591.22
  6. Step 6: Final answer
    x = 753,316.43

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1.5x scale

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.