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Finding the Third Proportional to 664,218 and 1,004,190

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Solution

The third proportional to 664,218 and 1,004,190 is: 1,518,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,218 : 1,004,190 = 1,004,190 : x
  2. Step 2: Convert to fraction form
    664,218/1,004,190 = 1,004,190/x
  3. Step 3: Cross multiply
    664,218x = 1,004,190 × 1,004,190
  4. Step 4: Simplify right side
    664,218x = 1,008,397,556,100
  5. Step 5: Solve for x
    x = 1,008,397,556,100/664,218
  6. Step 6: Final answer
    x = 1,518,172.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.