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Finding the Third Proportional to 654.19 and 955.69

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Solution

The third proportional to 654.19 and 955.69 is: 1,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.19 : 955.69 = 955.69 : x
  2. Step 2: Convert to fraction form
    654.19/955.69 = 955.69/x
  3. Step 3: Cross multiply
    654.19x = 955.69 × 955.69
  4. Step 4: Simplify right side
    654.19x = 913,338.60
  5. Step 5: Solve for x
    x = 913,338.60/654.19
  6. Step 6: Final answer
    x = 1,396.14

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.