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Finding the Third Proportional to 521,036 and 782,816

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Solution

The third proportional to 521,036 and 782,816 is: 1,176,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,036 : 782,816 = 782,816 : x
  2. Step 2: Convert to fraction form
    521,036/782,816 = 782,816/x
  3. Step 3: Cross multiply
    521,036x = 782,816 × 782,816
  4. Step 4: Simplify right side
    521,036x = 612,800,889,856
  5. Step 5: Solve for x
    x = 612,800,889,856/521,036
  6. Step 6: Final answer
    x = 1,176,120.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.