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Finding the Fourth Proportional to 472, 708 and 183.56

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Solution

The fourth proportional to 472, 708 and 183.56 is: 275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    472 : 708 = 183.56 : x
  2. Step 2: Convert to fraction form
    472/708 = 183.56/x
  3. Step 3: Cross multiply
    472x = 708 × 183.56
  4. Step 4: Simplify right side
    472x = 129,960.48
  5. Step 5: Solve for x
    x = 129,960.48/472
  6. Step 6: Final answer
    x = 275.34

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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.