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Finding the Third Proportional to 918,219 and 1,983,979.50

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Solution

The third proportional to 918,219 and 1,983,979.50 is: 4,286,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,219 : 1,983,979.50 = 1,983,979.50 : x
  2. Step 2: Convert to fraction form
    918,219/1,983,979.50 = 1,983,979.50/x
  3. Step 3: Cross multiply
    918,219x = 1,983,979.50 × 1,983,979.50
  4. Step 4: Simplify right side
    918,219x = 3,936,174,656,420.25
  5. Step 5: Solve for x
    x = 3,936,174,656,420.25/918,219
  6. Step 6: Final answer
    x = 4,286,749.30

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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.