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Finding the Fourth Proportional to 1,092.72, 1,639.30 and 362.26

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Solution

The fourth proportional to 1,092.72, 1,639.30 and 362.26 is: 543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.72 : 1,639.30 = 362.26 : x
  2. Step 2: Convert to fraction form
    1,092.72/1,639.30 = 362.26/x
  3. Step 3: Cross multiply
    1,092.72x = 1,639.30 × 362.26
  4. Step 4: Simplify right side
    1,092.72x = 593,852.82
  5. Step 5: Solve for x
    x = 593,852.82/1,092.72
  6. Step 6: Final answer
    x = 543.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.