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Finding the Fourth Proportional to 1,822,711.80, 2,734,067.70 and 875,854.20

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Solution

The fourth proportional to 1,822,711.80, 2,734,067.70 and 875,854.20 is: 1,313,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822,711.80 : 2,734,067.70 = 875,854.20 : x
  2. Step 2: Convert to fraction form
    1,822,711.80/2,734,067.70 = 875,854.20/x
  3. Step 3: Cross multiply
    1,822,711.80x = 2,734,067.70 × 875,854.20
  4. Step 4: Simplify right side
    1,822,711.80x = 2,394,644,678,129.34
  5. Step 5: Solve for x
    x = 2,394,644,678,129.34/1,822,711.80
  6. Step 6: Final answer
    x = 1,313,781.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.