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Finding the Third Proportional to 410.06 and 901.28

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Solution

The third proportional to 410.06 and 901.28 is: 1,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.06 : 901.28 = 901.28 : x
  2. Step 2: Convert to fraction form
    410.06/901.28 = 901.28/x
  3. Step 3: Cross multiply
    410.06x = 901.28 × 901.28
  4. Step 4: Simplify right side
    410.06x = 812,311.41
  5. Step 5: Solve for x
    x = 812,311.41/410.06
  6. Step 6: Final answer
    x = 1,980.95

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.