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Finding the Third Proportional to 356.75 and 560.50

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Solution

The third proportional to 356.75 and 560.50 is: 880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.75 : 560.50 = 560.50 : x
  2. Step 2: Convert to fraction form
    356.75/560.50 = 560.50/x
  3. Step 3: Cross multiply
    356.75x = 560.50 × 560.50
  4. Step 4: Simplify right side
    356.75x = 314,160.25
  5. Step 5: Solve for x
    x = 314,160.25/356.75
  6. Step 6: Final answer
    x = 880.62

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.