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Finding the Third Proportional to 855,423 and 1,837,206

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Solution

The third proportional to 855,423 and 1,837,206 is: 3,945,797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,423 : 1,837,206 = 1,837,206 : x
  2. Step 2: Convert to fraction form
    855,423/1,837,206 = 1,837,206/x
  3. Step 3: Cross multiply
    855,423x = 1,837,206 × 1,837,206
  4. Step 4: Simplify right side
    855,423x = 3,375,325,886,436
  5. Step 5: Solve for x
    x = 3,375,325,886,436/855,423
  6. Step 6: Final answer
    x = 3,945,797.44

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.