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Finding the Fourth Proportional to 2,834,941.80, 4,251,230.20 and 889,169.12

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Solution

The fourth proportional to 2,834,941.80, 4,251,230.20 and 889,169.12 is: 1,333,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834,941.80 : 4,251,230.20 = 889,169.12 : x
  2. Step 2: Convert to fraction form
    2,834,941.80/4,251,230.20 = 889,169.12/x
  3. Step 3: Cross multiply
    2,834,941.80x = 4,251,230.20 × 889,169.12
  4. Step 4: Simplify right side
    2,834,941.80x = 3,780,062,590,149.43
  5. Step 5: Solve for x
    x = 3,780,062,590,149.43/2,834,941.80
  6. Step 6: Final answer
    x = 1,333,382.78

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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.