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Finding the Third Proportional to 373.36 and 622.69

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Solution

The third proportional to 373.36 and 622.69 is: 1,038.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.36 : 622.69 = 622.69 : x
  2. Step 2: Convert to fraction form
    373.36/622.69 = 622.69/x
  3. Step 3: Cross multiply
    373.36x = 622.69 × 622.69
  4. Step 4: Simplify right side
    373.36x = 387,739.72
  5. Step 5: Solve for x
    x = 387,739.72/373.36
  6. Step 6: Final answer
    x = 1,038.52

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.