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Finding the Fourth Proportional to 462.17, 637.76 and 265.64

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Solution

The fourth proportional to 462.17, 637.76 and 265.64 is: 366.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.17 : 637.76 = 265.64 : x
  2. Step 2: Convert to fraction form
    462.17/637.76 = 265.64/x
  3. Step 3: Cross multiply
    462.17x = 637.76 × 265.64
  4. Step 4: Simplify right side
    462.17x = 169,412.04
  5. Step 5: Solve for x
    x = 169,412.04/462.17
  6. Step 6: Final answer
    x = 366.56

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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.