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Finding the Third Proportional to 1,236,798.28 and 1,891,979.44

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Solution

The third proportional to 1,236,798.28 and 1,891,979.44 is: 2,894,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,798.28 : 1,891,979.44 = 1,891,979.44 : x
  2. Step 2: Convert to fraction form
    1,236,798.28/1,891,979.44 = 1,891,979.44/x
  3. Step 3: Cross multiply
    1,236,798.28x = 1,891,979.44 × 1,891,979.44
  4. Step 4: Simplify right side
    1,236,798.28x = 3,579,586,191,922.82
  5. Step 5: Solve for x
    x = 3,579,586,191,922.82/1,236,798.28
  6. Step 6: Final answer
    x = 2,894,236.07

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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.