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Finding the Third Proportional to 330 and 503.63

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Solution

The third proportional to 330 and 503.63 is: 768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330 : 503.63 = 503.63 : x
  2. Step 2: Convert to fraction form
    330/503.63 = 503.63/x
  3. Step 3: Cross multiply
    330x = 503.63 × 503.63
  4. Step 4: Simplify right side
    330x = 253,638.14
  5. Step 5: Solve for x
    x = 253,638.14/330
  6. Step 6: Final answer
    x = 768.60

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.