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Finding the Fourth Proportional to 1,919,104.44, 2,648,375.34 and 1,059,648.44

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Solution

The fourth proportional to 1,919,104.44, 2,648,375.34 and 1,059,648.44 is: 1,462,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,104.44 : 2,648,375.34 = 1,059,648.44 : x
  2. Step 2: Convert to fraction form
    1,919,104.44/2,648,375.34 = 1,059,648.44/x
  3. Step 3: Cross multiply
    1,919,104.44x = 2,648,375.34 × 1,059,648.44
  4. Step 4: Simplify right side
    1,919,104.44x = 2,806,346,797,565.47
  5. Step 5: Solve for x
    x = 2,806,346,797,565.47/1,919,104.44
  6. Step 6: Final answer
    x = 1,462,321.04

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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.