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Finding the Fourth Proportional to 463.79, 695.96 and 269.17

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Solution

The fourth proportional to 463.79, 695.96 and 269.17 is: 403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.79 : 695.96 = 269.17 : x
  2. Step 2: Convert to fraction form
    463.79/695.96 = 269.17/x
  3. Step 3: Cross multiply
    463.79x = 695.96 × 269.17
  4. Step 4: Simplify right side
    463.79x = 187,328.07
  5. Step 5: Solve for x
    x = 187,328.07/463.79
  6. Step 6: Final answer
    x = 403.91

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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.