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Finding the Third Proportional to 993,644 and 2,155,324

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Solution

The third proportional to 993,644 and 2,155,324 is: 4,675,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,644 : 2,155,324 = 2,155,324 : x
  2. Step 2: Convert to fraction form
    993,644/2,155,324 = 2,155,324/x
  3. Step 3: Cross multiply
    993,644x = 2,155,324 × 2,155,324
  4. Step 4: Simplify right side
    993,644x = 4,645,421,544,976
  5. Step 5: Solve for x
    x = 4,645,421,544,976/993,644
  6. Step 6: Final answer
    x = 4,675,136.71

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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.