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Finding the Fourth Proportional to 314.96, 433.92 and 262.32

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Solution

The fourth proportional to 314.96, 433.92 and 262.32 is: 361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.96 : 433.92 = 262.32 : x
  2. Step 2: Convert to fraction form
    314.96/433.92 = 262.32/x
  3. Step 3: Cross multiply
    314.96x = 433.92 × 262.32
  4. Step 4: Simplify right side
    314.96x = 113,825.89
  5. Step 5: Solve for x
    x = 113,825.89/314.96
  6. Step 6: Final answer
    x = 361.40

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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.