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Finding the Third Proportional to 598 and 855.50

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Solution

The third proportional to 598 and 855.50 is: 1,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    598 : 855.50 = 855.50 : x
  2. Step 2: Convert to fraction form
    598/855.50 = 855.50/x
  3. Step 3: Cross multiply
    598x = 855.50 × 855.50
  4. Step 4: Simplify right side
    598x = 731,880.25
  5. Step 5: Solve for x
    x = 731,880.25/598
  6. Step 6: Final answer
    x = 1,223.88

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.