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Finding the Third Proportional to 399,693.50 and 827,574.50

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Solution

The third proportional to 399,693.50 and 827,574.50 is: 1,713,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,693.50 : 827,574.50 = 827,574.50 : x
  2. Step 2: Convert to fraction form
    399,693.50/827,574.50 = 827,574.50/x
  3. Step 3: Cross multiply
    399,693.50x = 827,574.50 × 827,574.50
  4. Step 4: Simplify right side
    399,693.50x = 684,879,553,050.25
  5. Step 5: Solve for x
    x = 684,879,553,050.25/399,693.50
  6. Step 6: Final answer
    x = 1,713,511.86

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.