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Finding the Third Proportional to 312 and 466

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Solution

The third proportional to 312 and 466 is: 696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312 : 466 = 466 : x
  2. Step 2: Convert to fraction form
    312/466 = 466/x
  3. Step 3: Cross multiply
    312x = 466 × 466
  4. Step 4: Simplify right side
    312x = 217,156
  5. Step 5: Solve for x
    x = 217,156/312
  6. Step 6: Final answer
    x = 696.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.