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Finding the Third Proportional to 541.50 and 697.50

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Solution

The third proportional to 541.50 and 697.50 is: 898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.50 : 697.50 = 697.50 : x
  2. Step 2: Convert to fraction form
    541.50/697.50 = 697.50/x
  3. Step 3: Cross multiply
    541.50x = 697.50 × 697.50
  4. Step 4: Simplify right side
    541.50x = 486,506.25
  5. Step 5: Solve for x
    x = 486,506.25/541.50
  6. Step 6: Final answer
    x = 898.44

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.