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Finding the Fourth Proportional to 379.34, 568.56 and 162.46

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Solution

The fourth proportional to 379.34, 568.56 and 162.46 is: 243.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.34 : 568.56 = 162.46 : x
  2. Step 2: Convert to fraction form
    379.34/568.56 = 162.46/x
  3. Step 3: Cross multiply
    379.34x = 568.56 × 162.46
  4. Step 4: Simplify right side
    379.34x = 92,368.26
  5. Step 5: Solve for x
    x = 92,368.26/379.34
  6. Step 6: Final answer
    x = 243.50

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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.