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Finding the Third Proportional to 390.50 and 944

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Solution

The third proportional to 390.50 and 944 is: 2,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    390.50 : 944 = 944 : x
  2. Step 2: Convert to fraction form
    390.50/944 = 944/x
  3. Step 3: Cross multiply
    390.50x = 944 × 944
  4. Step 4: Simplify right side
    390.50x = 891,136
  5. Step 5: Solve for x
    x = 891,136/390.50
  6. Step 6: Final answer
    x = 2,282.04

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.