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Finding the Fourth Proportional to 1,704.97, 2,556.64 and 923.73

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Solution

The fourth proportional to 1,704.97, 2,556.64 and 923.73 is: 1,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.97 : 2,556.64 = 923.73 : x
  2. Step 2: Convert to fraction form
    1,704.97/2,556.64 = 923.73/x
  3. Step 3: Cross multiply
    1,704.97x = 2,556.64 × 923.73
  4. Step 4: Simplify right side
    1,704.97x = 2,361,645.07
  5. Step 5: Solve for x
    x = 2,361,645.07/1,704.97
  6. Step 6: Final answer
    x = 1,385.15

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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.