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Finding the Fourth Proportional to 312.33, 468.27 and 175.35

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Solution

The fourth proportional to 312.33, 468.27 and 175.35 is: 262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.33 : 468.27 = 175.35 : x
  2. Step 2: Convert to fraction form
    312.33/468.27 = 175.35/x
  3. Step 3: Cross multiply
    312.33x = 468.27 × 175.35
  4. Step 4: Simplify right side
    312.33x = 82,111.14
  5. Step 5: Solve for x
    x = 82,111.14/312.33
  6. Step 6: Final answer
    x = 262.90

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Why These Related Problems?

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