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Finding the Fourth Proportional to 324.16, 484.76 and 262.16

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Solution

The fourth proportional to 324.16, 484.76 and 262.16 is: 392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.16 : 484.76 = 262.16 : x
  2. Step 2: Convert to fraction form
    324.16/484.76 = 262.16/x
  3. Step 3: Cross multiply
    324.16x = 484.76 × 262.16
  4. Step 4: Simplify right side
    324.16x = 127,084.68
  5. Step 5: Solve for x
    x = 127,084.68/324.16
  6. Step 6: Final answer
    x = 392.04

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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.