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Finding the Fourth Proportional to 292.17, 436.72 and 222.97

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Solution

The fourth proportional to 292.17, 436.72 and 222.97 is: 333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.17 : 436.72 = 222.97 : x
  2. Step 2: Convert to fraction form
    292.17/436.72 = 222.97/x
  3. Step 3: Cross multiply
    292.17x = 436.72 × 222.97
  4. Step 4: Simplify right side
    292.17x = 97,375.34
  5. Step 5: Solve for x
    x = 97,375.34/292.17
  6. Step 6: Final answer
    x = 333.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.