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Finding the Third Proportional to 506 and 1,358

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Solution

The third proportional to 506 and 1,358 is: 3,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    506 : 1,358 = 1,358 : x
  2. Step 2: Convert to fraction form
    506/1,358 = 1,358/x
  3. Step 3: Cross multiply
    506x = 1,358 × 1,358
  4. Step 4: Simplify right side
    506x = 1,844,164
  5. Step 5: Solve for x
    x = 1,844,164/506
  6. Step 6: Final answer
    x = 3,644.59

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Why These Related Problems?

These problems maintain the same ratio (2.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.