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Finding the Third Proportional to 360.56 and 554.06

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Solution

The third proportional to 360.56 and 554.06 is: 851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.56 : 554.06 = 554.06 : x
  2. Step 2: Convert to fraction form
    360.56/554.06 = 554.06/x
  3. Step 3: Cross multiply
    360.56x = 554.06 × 554.06
  4. Step 4: Simplify right side
    360.56x = 306,985.25
  5. Step 5: Solve for x
    x = 306,985.25/360.56
  6. Step 6: Final answer
    x = 851.41

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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.