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Finding the Third Proportional to 431,120 and 936,856

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Solution

The third proportional to 431,120 and 936,856 is: 2,035,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,120 : 936,856 = 936,856 : x
  2. Step 2: Convert to fraction form
    431,120/936,856 = 936,856/x
  3. Step 3: Cross multiply
    431,120x = 936,856 × 936,856
  4. Step 4: Simplify right side
    431,120x = 877,699,164,736
  5. Step 5: Solve for x
    x = 877,699,164,736/431,120
  6. Step 6: Final answer
    x = 2,035,858.15

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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.