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Finding the Third Proportional to 917,590 and 1,992,807

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Solution

The third proportional to 917,590 and 1,992,807 is: 4,327,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,590 : 1,992,807 = 1,992,807 : x
  2. Step 2: Convert to fraction form
    917,590/1,992,807 = 1,992,807/x
  3. Step 3: Cross multiply
    917,590x = 1,992,807 × 1,992,807
  4. Step 4: Simplify right side
    917,590x = 3,971,279,739,249
  5. Step 5: Solve for x
    x = 3,971,279,739,249/917,590
  6. Step 6: Final answer
    x = 4,327,945.75

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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.