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Finding the Fourth Proportional to 1,092.64, 1,508.10 and 673.26

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Solution

The fourth proportional to 1,092.64, 1,508.10 and 673.26 is: 929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.64 : 1,508.10 = 673.26 : x
  2. Step 2: Convert to fraction form
    1,092.64/1,508.10 = 673.26/x
  3. Step 3: Cross multiply
    1,092.64x = 1,508.10 × 673.26
  4. Step 4: Simplify right side
    1,092.64x = 1,015,343.41
  5. Step 5: Solve for x
    x = 1,015,343.41/1,092.64
  6. Step 6: Final answer
    x = 929.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.