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Finding the Third Proportional to 329.63 and 711.56

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Solution

The third proportional to 329.63 and 711.56 is: 1,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.63 : 711.56 = 711.56 : x
  2. Step 2: Convert to fraction form
    329.63/711.56 = 711.56/x
  3. Step 3: Cross multiply
    329.63x = 711.56 × 711.56
  4. Step 4: Simplify right side
    329.63x = 506,321.19
  5. Step 5: Solve for x
    x = 506,321.19/329.63
  6. Step 6: Final answer
    x = 1,536.05

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.