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Finding the Third Proportional to 563.25 and 790.50

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Solution

The third proportional to 563.25 and 790.50 is: 1,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.25 : 790.50 = 790.50 : x
  2. Step 2: Convert to fraction form
    563.25/790.50 = 790.50/x
  3. Step 3: Cross multiply
    563.25x = 790.50 × 790.50
  4. Step 4: Simplify right side
    563.25x = 624,890.25
  5. Step 5: Solve for x
    x = 624,890.25/563.25
  6. Step 6: Final answer
    x = 1,109.44

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.