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Finding the Third Proportional to 341.75 and 623.50

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Solution

The third proportional to 341.75 and 623.50 is: 1,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.75 : 623.50 = 623.50 : x
  2. Step 2: Convert to fraction form
    341.75/623.50 = 623.50/x
  3. Step 3: Cross multiply
    341.75x = 623.50 × 623.50
  4. Step 4: Simplify right side
    341.75x = 388,752.25
  5. Step 5: Solve for x
    x = 388,752.25/341.75
  6. Step 6: Final answer
    x = 1,137.53

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Why These Related Problems?

These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.