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Finding the Third Proportional to 477 and 716.63

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Solution

The third proportional to 477 and 716.63 is: 1,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    477 : 716.63 = 716.63 : x
  2. Step 2: Convert to fraction form
    477/716.63 = 716.63/x
  3. Step 3: Cross multiply
    477x = 716.63 × 716.63
  4. Step 4: Simplify right side
    477x = 513,551.39
  5. Step 5: Solve for x
    x = 513,551.39/477
  6. Step 6: Final answer
    x = 1,076.63

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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.