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Finding the Fourth Proportional to 324.06, 446.88 and 261.84

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Solution

The fourth proportional to 324.06, 446.88 and 261.84 is: 361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.06 : 446.88 = 261.84 : x
  2. Step 2: Convert to fraction form
    324.06/446.88 = 261.84/x
  3. Step 3: Cross multiply
    324.06x = 446.88 × 261.84
  4. Step 4: Simplify right side
    324.06x = 117,011.06
  5. Step 5: Solve for x
    x = 117,011.06/324.06
  6. Step 6: Final answer
    x = 361.08

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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.