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Finding the Fourth Proportional to 324.99, 448.48 and 194

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Solution

The fourth proportional to 324.99, 448.48 and 194 is: 267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.99 : 448.48 = 194 : x
  2. Step 2: Convert to fraction form
    324.99/448.48 = 194/x
  3. Step 3: Cross multiply
    324.99x = 448.48 × 194
  4. Step 4: Simplify right side
    324.99x = 87,005.12
  5. Step 5: Solve for x
    x = 87,005.12/324.99
  6. Step 6: Final answer
    x = 267.72

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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.