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Finding the Fourth Proportional to 2,857,221.04, 3,942,952.52 and 1,568,082.32

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Solution

The fourth proportional to 2,857,221.04, 3,942,952.52 and 1,568,082.32 is: 2,163,946.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857,221.04 : 3,942,952.52 = 1,568,082.32 : x
  2. Step 2: Convert to fraction form
    2,857,221.04/3,942,952.52 = 1,568,082.32/x
  3. Step 3: Cross multiply
    2,857,221.04x = 3,942,952.52 × 1,568,082.32
  4. Step 4: Simplify right side
    2,857,221.04x = 6,182,874,135,211.45
  5. Step 5: Solve for x
    x = 6,182,874,135,211.45/2,857,221.04
  6. Step 6: Final answer
    x = 2,163,946.73

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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.