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Finding the Fourth Proportional to 1,895,512.31, 2,843,766.44 and 681,211.54

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Solution

The fourth proportional to 1,895,512.31, 2,843,766.44 and 681,211.54 is: 1,021,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895,512.31 : 2,843,766.44 = 681,211.54 : x
  2. Step 2: Convert to fraction form
    1,895,512.31/2,843,766.44 = 681,211.54/x
  3. Step 3: Cross multiply
    1,895,512.31x = 2,843,766.44 × 681,211.54
  4. Step 4: Simplify right side
    1,895,512.31x = 1,937,206,515,992.72
  5. Step 5: Solve for x
    x = 1,937,206,515,992.72/1,895,512.31
  6. Step 6: Final answer
    x = 1,021,996.27

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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.