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Finding the Third Proportional to 370.31 and 606.66

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Solution

The third proportional to 370.31 and 606.66 is: 993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.31 : 606.66 = 606.66 : x
  2. Step 2: Convert to fraction form
    370.31/606.66 = 606.66/x
  3. Step 3: Cross multiply
    370.31x = 606.66 × 606.66
  4. Step 4: Simplify right side
    370.31x = 368,031.81
  5. Step 5: Solve for x
    x = 368,031.81/370.31
  6. Step 6: Final answer
    x = 993.84

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.