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Finding the Fourth Proportional to 338.52, 467.10 and 222

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Solution

The fourth proportional to 338.52, 467.10 and 222 is: 306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.52 : 467.10 = 222 : x
  2. Step 2: Convert to fraction form
    338.52/467.10 = 222/x
  3. Step 3: Cross multiply
    338.52x = 467.10 × 222
  4. Step 4: Simplify right side
    338.52x = 103,696.20
  5. Step 5: Solve for x
    x = 103,696.20/338.52
  6. Step 6: Final answer
    x = 306.32

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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.