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Finding the Third Proportional to 393,036 and 859,618.50

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Solution

The third proportional to 393,036 and 859,618.50 is: 1,880,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,036 : 859,618.50 = 859,618.50 : x
  2. Step 2: Convert to fraction form
    393,036/859,618.50 = 859,618.50/x
  3. Step 3: Cross multiply
    393,036x = 859,618.50 × 859,618.50
  4. Step 4: Simplify right side
    393,036x = 738,943,965,542.25
  5. Step 5: Solve for x
    x = 738,943,965,542.25/393,036
  6. Step 6: Final answer
    x = 1,880,092.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.