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Finding the Fourth Proportional to 1,987,761.04, 2,743,098.60 and 1,082,340.88

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Solution

The fourth proportional to 1,987,761.04, 2,743,098.60 and 1,082,340.88 is: 1,493,624.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,761.04 : 2,743,098.60 = 1,082,340.88 : x
  2. Step 2: Convert to fraction form
    1,987,761.04/2,743,098.60 = 1,082,340.88/x
  3. Step 3: Cross multiply
    1,987,761.04x = 2,743,098.60 × 1,082,340.88
  4. Step 4: Simplify right side
    1,987,761.04x = 2,968,967,752,650.77
  5. Step 5: Solve for x
    x = 2,968,967,752,650.77/1,987,761.04
  6. Step 6: Final answer
    x = 1,493,624.08

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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.