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Finding the Fourth Proportional to 1,791.60, 2,682.54 and 924.20

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Solution

The fourth proportional to 1,791.60, 2,682.54 and 924.20 is: 1,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.60 : 2,682.54 = 924.20 : x
  2. Step 2: Convert to fraction form
    1,791.60/2,682.54 = 924.20/x
  3. Step 3: Cross multiply
    1,791.60x = 2,682.54 × 924.20
  4. Step 4: Simplify right side
    1,791.60x = 2,479,203.47
  5. Step 5: Solve for x
    x = 2,479,203.47/1,791.60
  6. Step 6: Final answer
    x = 1,383.79

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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.