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Finding the Third Proportional to 915,879 and 1,401,015.75

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Solution

The third proportional to 915,879 and 1,401,015.75 is: 2,143,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,879 : 1,401,015.75 = 1,401,015.75 : x
  2. Step 2: Convert to fraction form
    915,879/1,401,015.75 = 1,401,015.75/x
  3. Step 3: Cross multiply
    915,879x = 1,401,015.75 × 1,401,015.75
  4. Step 4: Simplify right side
    915,879x = 1,962,845,131,748.06
  5. Step 5: Solve for x
    x = 1,962,845,131,748.06/915,879
  6. Step 6: Final answer
    x = 2,143,127.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.