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Finding the Third Proportional to 608.63 and 917.25

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Solution

The third proportional to 608.63 and 917.25 is: 1,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.63 : 917.25 = 917.25 : x
  2. Step 2: Convert to fraction form
    608.63/917.25 = 917.25/x
  3. Step 3: Cross multiply
    608.63x = 917.25 × 917.25
  4. Step 4: Simplify right side
    608.63x = 841,347.56
  5. Step 5: Solve for x
    x = 841,347.56/608.63
  6. Step 6: Final answer
    x = 1,382.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.