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Finding the Fourth Proportional to 932.22, 1,396.74 and 671

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Solution

The fourth proportional to 932.22, 1,396.74 and 671 is: 1,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.22 : 1,396.74 = 671 : x
  2. Step 2: Convert to fraction form
    932.22/1,396.74 = 671/x
  3. Step 3: Cross multiply
    932.22x = 1,396.74 × 671
  4. Step 4: Simplify right side
    932.22x = 937,212.54
  5. Step 5: Solve for x
    x = 937,212.54/932.22
  6. Step 6: Final answer
    x = 1,005.36

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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.