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Finding the Third Proportional to 918,220 and 1,983,982

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Solution

The third proportional to 918,220 and 1,983,982 is: 4,286,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,220 : 1,983,982 = 1,983,982 : x
  2. Step 2: Convert to fraction form
    918,220/1,983,982 = 1,983,982/x
  3. Step 3: Cross multiply
    918,220x = 1,983,982 × 1,983,982
  4. Step 4: Simplify right side
    918,220x = 3,936,184,576,324
  5. Step 5: Solve for x
    x = 3,936,184,576,324/918,220
  6. Step 6: Final answer
    x = 4,286,755.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.