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Finding the Third Proportional to 336.66 and 615.94

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Solution

The third proportional to 336.66 and 615.94 is: 1,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.66 : 615.94 = 615.94 : x
  2. Step 2: Convert to fraction form
    336.66/615.94 = 615.94/x
  3. Step 3: Cross multiply
    336.66x = 615.94 × 615.94
  4. Step 4: Simplify right side
    336.66x = 379,379.00
  5. Step 5: Solve for x
    x = 379,379.00/336.66
  6. Step 6: Final answer
    x = 1,126.90

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.