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Finding the Fourth Proportional to 314.44, 433.92 and 183.42

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Solution

The fourth proportional to 314.44, 433.92 and 183.42 is: 253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.44 : 433.92 = 183.42 : x
  2. Step 2: Convert to fraction form
    314.44/433.92 = 183.42/x
  3. Step 3: Cross multiply
    314.44x = 433.92 × 183.42
  4. Step 4: Simplify right side
    314.44x = 79,590.29
  5. Step 5: Solve for x
    x = 79,590.29/314.44
  6. Step 6: Final answer
    x = 253.12

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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.