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Finding the Fourth Proportional to 472.17, 708.46 and 240.94

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Solution

The fourth proportional to 472.17, 708.46 and 240.94 is: 361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.17 : 708.46 = 240.94 : x
  2. Step 2: Convert to fraction form
    472.17/708.46 = 240.94/x
  3. Step 3: Cross multiply
    472.17x = 708.46 × 240.94
  4. Step 4: Simplify right side
    472.17x = 170,694.01
  5. Step 5: Solve for x
    x = 170,694.01/472.17
  6. Step 6: Final answer
    x = 361.51

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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.