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Finding the Third Proportional to 855,517 and 1,858,841

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Solution

The third proportional to 855,517 and 1,858,841 is: 4,038,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,517 : 1,858,841 = 1,858,841 : x
  2. Step 2: Convert to fraction form
    855,517/1,858,841 = 1,858,841/x
  3. Step 3: Cross multiply
    855,517x = 1,858,841 × 1,858,841
  4. Step 4: Simplify right side
    855,517x = 3,455,289,863,281
  5. Step 5: Solve for x
    x = 3,455,289,863,281/855,517
  6. Step 6: Final answer
    x = 4,038,832.50

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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.