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Finding the Third Proportional to 354.75 and 598.50

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Solution

The third proportional to 354.75 and 598.50 is: 1,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.75 : 598.50 = 598.50 : x
  2. Step 2: Convert to fraction form
    354.75/598.50 = 598.50/x
  3. Step 3: Cross multiply
    354.75x = 598.50 × 598.50
  4. Step 4: Simplify right side
    354.75x = 358,202.25
  5. Step 5: Solve for x
    x = 358,202.25/354.75
  6. Step 6: Final answer
    x = 1,009.73

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.