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Finding the Fourth Proportional to 314.34, 433.75 and 174.42

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Solution

The fourth proportional to 314.34, 433.75 and 174.42 is: 240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.34 : 433.75 = 174.42 : x
  2. Step 2: Convert to fraction form
    314.34/433.75 = 174.42/x
  3. Step 3: Cross multiply
    314.34x = 433.75 × 174.42
  4. Step 4: Simplify right side
    314.34x = 75,652.61
  5. Step 5: Solve for x
    x = 75,652.61/314.34
  6. Step 6: Final answer
    x = 240.67

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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.