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Finding the Third Proportional to 360.75 and 529.13

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Solution

The third proportional to 360.75 and 529.13 is: 776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.75 : 529.13 = 529.13 : x
  2. Step 2: Convert to fraction form
    360.75/529.13 = 529.13/x
  3. Step 3: Cross multiply
    360.75x = 529.13 × 529.13
  4. Step 4: Simplify right side
    360.75x = 279,973.27
  5. Step 5: Solve for x
    x = 279,973.27/360.75
  6. Step 6: Final answer
    x = 776.09

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.