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Finding the Third Proportional to 235.41 and 353.11

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Solution

The third proportional to 235.41 and 353.11 is: 529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.41 : 353.11 = 353.11 : x
  2. Step 2: Convert to fraction form
    235.41/353.11 = 353.11/x
  3. Step 3: Cross multiply
    235.41x = 353.11 × 353.11
  4. Step 4: Simplify right side
    235.41x = 124,686.23
  5. Step 5: Solve for x
    x = 124,686.23/235.41
  6. Step 6: Final answer
    x = 529.66

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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.