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Finding the Fourth Proportional to 1,694.88, 2,546.80 and 925.92

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Solution

The fourth proportional to 1,694.88, 2,546.80 and 925.92 is: 1,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.88 : 2,546.80 = 925.92 : x
  2. Step 2: Convert to fraction form
    1,694.88/2,546.80 = 925.92/x
  3. Step 3: Cross multiply
    1,694.88x = 2,546.80 × 925.92
  4. Step 4: Simplify right side
    1,694.88x = 2,358,133.06
  5. Step 5: Solve for x
    x = 2,358,133.06/1,694.88
  6. Step 6: Final answer
    x = 1,391.33

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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.