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Finding the Third Proportional to 524.50 and 812.88

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Solution

The third proportional to 524.50 and 812.88 is: 1,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.50 : 812.88 = 812.88 : x
  2. Step 2: Convert to fraction form
    524.50/812.88 = 812.88/x
  3. Step 3: Cross multiply
    524.50x = 812.88 × 812.88
  4. Step 4: Simplify right side
    524.50x = 660,765.77
  5. Step 5: Solve for x
    x = 660,765.77/524.50
  6. Step 6: Final answer
    x = 1,259.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.