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Finding the Fourth Proportional to 1,696.44, 2,546.28 and 875.28

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Solution

The fourth proportional to 1,696.44, 2,546.28 and 875.28 is: 1,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.44 : 2,546.28 = 875.28 : x
  2. Step 2: Convert to fraction form
    1,696.44/2,546.28 = 875.28/x
  3. Step 3: Cross multiply
    1,696.44x = 2,546.28 × 875.28
  4. Step 4: Simplify right side
    1,696.44x = 2,228,707.96
  5. Step 5: Solve for x
    x = 2,228,707.96/1,696.44
  6. Step 6: Final answer
    x = 1,313.76

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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.