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Finding the Fourth Proportional to 263.96, 364.10 and 211.46

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Solution

The fourth proportional to 263.96, 364.10 and 211.46 is: 291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.96 : 364.10 = 211.46 : x
  2. Step 2: Convert to fraction form
    263.96/364.10 = 211.46/x
  3. Step 3: Cross multiply
    263.96x = 364.10 × 211.46
  4. Step 4: Simplify right side
    263.96x = 76,991.29
  5. Step 5: Solve for x
    x = 76,991.29/263.96
  6. Step 6: Final answer
    x = 291.68

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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.