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Finding the Third Proportional to 867,399 and 1,879,598

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Solution

The third proportional to 867,399 and 1,879,598 is: 4,072,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,399 : 1,879,598 = 1,879,598 : x
  2. Step 2: Convert to fraction form
    867,399/1,879,598 = 1,879,598/x
  3. Step 3: Cross multiply
    867,399x = 1,879,598 × 1,879,598
  4. Step 4: Simplify right side
    867,399x = 3,532,888,641,604
  5. Step 5: Solve for x
    x = 3,532,888,641,604/867,399
  6. Step 6: Final answer
    x = 4,072,968.31

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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.