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Finding the Fourth Proportional to 614.16, 920.75 and 249.21

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Solution

The fourth proportional to 614.16, 920.75 and 249.21 is: 373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.16 : 920.75 = 249.21 : x
  2. Step 2: Convert to fraction form
    614.16/920.75 = 249.21/x
  3. Step 3: Cross multiply
    614.16x = 920.75 × 249.21
  4. Step 4: Simplify right side
    614.16x = 229,458.86
  5. Step 5: Solve for x
    x = 229,458.86/614.16
  6. Step 6: Final answer
    x = 373.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.