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Finding the Third Proportional to 262.13 and 580.50

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Solution

The third proportional to 262.13 and 580.50 is: 1,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.13 : 580.50 = 580.50 : x
  2. Step 2: Convert to fraction form
    262.13/580.50 = 580.50/x
  3. Step 3: Cross multiply
    262.13x = 580.50 × 580.50
  4. Step 4: Simplify right side
    262.13x = 336,980.25
  5. Step 5: Solve for x
    x = 336,980.25/262.13
  6. Step 6: Final answer
    x = 1,285.57

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.