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Finding the Third Proportional to 326.81 and 510.19

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Solution

The third proportional to 326.81 and 510.19 is: 796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.81 : 510.19 = 510.19 : x
  2. Step 2: Convert to fraction form
    326.81/510.19 = 510.19/x
  3. Step 3: Cross multiply
    326.81x = 510.19 × 510.19
  4. Step 4: Simplify right side
    326.81x = 260,291.29
  5. Step 5: Solve for x
    x = 260,291.29/326.81
  6. Step 6: Final answer
    x = 796.45

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.