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Finding the Third Proportional to 414,687,940.88 and 890,917,618.50

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Solution

The third proportional to 414,687,940.88 and 890,917,618.50 is: 1,914,051,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,687,940.88 : 890,917,618.50 = 890,917,618.50 : x
  2. Step 2: Convert to fraction form
    414,687,940.88/890,917,618.50 = 890,917,618.50/x
  3. Step 3: Cross multiply
    414,687,940.88x = 890,917,618.50 × 890,917,618.50
  4. Step 4: Simplify right side
    414,687,940.88x = 793,734,202,953,711,488
  5. Step 5: Solve for x
    x = 793,734,202,953,711,488/414,687,940.88
  6. Step 6: Final answer
    x = 1,914,051,807.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.