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Finding the Third Proportional to 368.30 and 920.74

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Solution

The third proportional to 368.30 and 920.74 is: 2,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.30 : 920.74 = 920.74 : x
  2. Step 2: Convert to fraction form
    368.30/920.74 = 920.74/x
  3. Step 3: Cross multiply
    368.30x = 920.74 × 920.74
  4. Step 4: Simplify right side
    368.30x = 847,766.18
  5. Step 5: Solve for x
    x = 847,766.18/368.30
  6. Step 6: Final answer
    x = 2,301.86

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Why These Related Problems?

These problems maintain the same ratio (2.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.