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Finding the Fourth Proportional to 402.95, 604.44 and 114.38

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Solution

The fourth proportional to 402.95, 604.44 and 114.38 is: 171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.95 : 604.44 = 114.38 : x
  2. Step 2: Convert to fraction form
    402.95/604.44 = 114.38/x
  3. Step 3: Cross multiply
    402.95x = 604.44 × 114.38
  4. Step 4: Simplify right side
    402.95x = 69,132.83
  5. Step 5: Solve for x
    x = 69,132.83/402.95
  6. Step 6: Final answer
    x = 171.57

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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.