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Finding the Fourth Proportional to 1,092.73, 1,639.29 and 362.23

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Solution

The fourth proportional to 1,092.73, 1,639.29 and 362.23 is: 543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.73 : 1,639.29 = 362.23 : x
  2. Step 2: Convert to fraction form
    1,092.73/1,639.29 = 362.23/x
  3. Step 3: Cross multiply
    1,092.73x = 1,639.29 × 362.23
  4. Step 4: Simplify right side
    1,092.73x = 593,800.02
  5. Step 5: Solve for x
    x = 593,800.02/1,092.73
  6. Step 6: Final answer
    x = 543.41

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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.