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Finding the Third Proportional to 500.25 and 729

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Solution

The third proportional to 500.25 and 729 is: 1,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.25 : 729 = 729 : x
  2. Step 2: Convert to fraction form
    500.25/729 = 729/x
  3. Step 3: Cross multiply
    500.25x = 729 × 729
  4. Step 4: Simplify right side
    500.25x = 531,441
  5. Step 5: Solve for x
    x = 531,441/500.25
  6. Step 6: Final answer
    x = 1,062.35

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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.