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Finding the Third Proportional to 890,176 and 1,979,372

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Solution

The third proportional to 890,176 and 1,979,372 is: 4,401,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,176 : 1,979,372 = 1,979,372 : x
  2. Step 2: Convert to fraction form
    890,176/1,979,372 = 1,979,372/x
  3. Step 3: Cross multiply
    890,176x = 1,979,372 × 1,979,372
  4. Step 4: Simplify right side
    890,176x = 3,917,913,514,384
  5. Step 5: Solve for x
    x = 3,917,913,514,384/890,176
  6. Step 6: Final answer
    x = 4,401,279.65

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.