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Finding the Third Proportional to 360.88 and 556.75

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Solution

The third proportional to 360.88 and 556.75 is: 858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.88 : 556.75 = 556.75 : x
  2. Step 2: Convert to fraction form
    360.88/556.75 = 556.75/x
  3. Step 3: Cross multiply
    360.88x = 556.75 × 556.75
  4. Step 4: Simplify right side
    360.88x = 309,970.56
  5. Step 5: Solve for x
    x = 309,970.56/360.88
  6. Step 6: Final answer
    x = 858.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.