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Finding the Fourth Proportional to 1,949,620.80, 2,924,431.20 and 1,641,691.20

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Solution

The fourth proportional to 1,949,620.80, 2,924,431.20 and 1,641,691.20 is: 2,462,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,620.80 : 2,924,431.20 = 1,641,691.20 : x
  2. Step 2: Convert to fraction form
    1,949,620.80/2,924,431.20 = 1,641,691.20/x
  3. Step 3: Cross multiply
    1,949,620.80x = 2,924,431.20 × 1,641,691.20
  4. Step 4: Simplify right side
    1,949,620.80x = 4,801,012,966,045.44
  5. Step 5: Solve for x
    x = 4,801,012,966,045.44/1,949,620.80
  6. Step 6: Final answer
    x = 2,462,536.80

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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.