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Finding the Third Proportional to 906,240 and 1,992,192

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Solution

The third proportional to 906,240 and 1,992,192 is: 4,379,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,240 : 1,992,192 = 1,992,192 : x
  2. Step 2: Convert to fraction form
    906,240/1,992,192 = 1,992,192/x
  3. Step 3: Cross multiply
    906,240x = 1,992,192 × 1,992,192
  4. Step 4: Simplify right side
    906,240x = 3,968,828,964,864
  5. Step 5: Solve for x
    x = 3,968,828,964,864/906,240
  6. Step 6: Final answer
    x = 4,379,445.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.