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Finding the Fourth Proportional to 326.19, 450.13 and 186.32

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Solution

The fourth proportional to 326.19, 450.13 and 186.32 is: 257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.19 : 450.13 = 186.32 : x
  2. Step 2: Convert to fraction form
    326.19/450.13 = 186.32/x
  3. Step 3: Cross multiply
    326.19x = 450.13 × 186.32
  4. Step 4: Simplify right side
    326.19x = 83,868.22
  5. Step 5: Solve for x
    x = 83,868.22/326.19
  6. Step 6: Final answer
    x = 257.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.