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Finding the Third Proportional to 867,474 and 1,879,731

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Solution

The third proportional to 867,474 and 1,879,731 is: 4,073,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,474 : 1,879,731 = 1,879,731 : x
  2. Step 2: Convert to fraction form
    867,474/1,879,731 = 1,879,731/x
  3. Step 3: Cross multiply
    867,474x = 1,879,731 × 1,879,731
  4. Step 4: Simplify right side
    867,474x = 3,533,388,632,361
  5. Step 5: Solve for x
    x = 3,533,388,632,361/867,474
  6. Step 6: Final answer
    x = 4,073,192.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.