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Finding the Fourth Proportional to 472.25, 651.67 and 262.42

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Solution

The fourth proportional to 472.25, 651.67 and 262.42 is: 362.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.25 : 651.67 = 262.42 : x
  2. Step 2: Convert to fraction form
    472.25/651.67 = 262.42/x
  3. Step 3: Cross multiply
    472.25x = 651.67 × 262.42
  4. Step 4: Simplify right side
    472.25x = 171,011.24
  5. Step 5: Solve for x
    x = 171,011.24/472.25
  6. Step 6: Final answer
    x = 362.12

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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.