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Finding the Fourth Proportional to 967,815, 1,335,584.70 and 543,879

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Solution

The fourth proportional to 967,815, 1,335,584.70 and 543,879 is: 750,553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,815 : 1,335,584.70 = 543,879 : x
  2. Step 2: Convert to fraction form
    967,815/1,335,584.70 = 543,879/x
  3. Step 3: Cross multiply
    967,815x = 1,335,584.70 × 543,879
  4. Step 4: Simplify right side
    967,815x = 726,396,471,051.30
  5. Step 5: Solve for x
    x = 726,396,471,051.30/967,815
  6. Step 6: Final answer
    x = 750,553.02

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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.