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Finding the Third Proportional to 351.75 and 556.88

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Solution

The third proportional to 351.75 and 556.88 is: 881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.75 : 556.88 = 556.88 : x
  2. Step 2: Convert to fraction form
    351.75/556.88 = 556.88/x
  3. Step 3: Cross multiply
    351.75x = 556.88 × 556.88
  4. Step 4: Simplify right side
    351.75x = 310,109.77
  5. Step 5: Solve for x
    x = 310,109.77/351.75
  6. Step 6: Final answer
    x = 881.62

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.