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Finding the Third Proportional to 601.50 and 917.75

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Solution

The third proportional to 601.50 and 917.75 is: 1,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.50 : 917.75 = 917.75 : x
  2. Step 2: Convert to fraction form
    601.50/917.75 = 917.75/x
  3. Step 3: Cross multiply
    601.50x = 917.75 × 917.75
  4. Step 4: Simplify right side
    601.50x = 842,265.06
  5. Step 5: Solve for x
    x = 842,265.06/601.50
  6. Step 6: Final answer
    x = 1,400.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.