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Finding the Fourth Proportional to 411.12, 567.48 and 236.52

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Solution

The fourth proportional to 411.12, 567.48 and 236.52 is: 326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.12 : 567.48 = 236.52 : x
  2. Step 2: Convert to fraction form
    411.12/567.48 = 236.52/x
  3. Step 3: Cross multiply
    411.12x = 567.48 × 236.52
  4. Step 4: Simplify right side
    411.12x = 134,220.37
  5. Step 5: Solve for x
    x = 134,220.37/411.12
  6. Step 6: Final answer
    x = 326.47

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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.