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Finding the Third Proportional to 336.25 and 623

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Solution

The third proportional to 336.25 and 623 is: 1,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.25 : 623 = 623 : x
  2. Step 2: Convert to fraction form
    336.25/623 = 623/x
  3. Step 3: Cross multiply
    336.25x = 623 × 623
  4. Step 4: Simplify right side
    336.25x = 388,129
  5. Step 5: Solve for x
    x = 388,129/336.25
  6. Step 6: Final answer
    x = 1,154.29

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.