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Finding the Third Proportional to 364.69 and 783.38

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Solution

The third proportional to 364.69 and 783.38 is: 1,682.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.69 : 783.38 = 783.38 : x
  2. Step 2: Convert to fraction form
    364.69/783.38 = 783.38/x
  3. Step 3: Cross multiply
    364.69x = 783.38 × 783.38
  4. Step 4: Simplify right side
    364.69x = 613,676.39
  5. Step 5: Solve for x
    x = 613,676.39/364.69
  6. Step 6: Final answer
    x = 1,682.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.