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Finding the Fourth Proportional to 341.55, 512.73 and 269.46

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Solution

The fourth proportional to 341.55, 512.73 and 269.46 is: 404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.55 : 512.73 = 269.46 : x
  2. Step 2: Convert to fraction form
    341.55/512.73 = 269.46/x
  3. Step 3: Cross multiply
    341.55x = 512.73 × 269.46
  4. Step 4: Simplify right side
    341.55x = 138,160.23
  5. Step 5: Solve for x
    x = 138,160.23/341.55
  6. Step 6: Final answer
    x = 404.51

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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.