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Finding the Third Proportional to 399,504.38 and 858,300.19

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Solution

The third proportional to 399,504.38 and 858,300.19 is: 1,843,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,504.38 : 858,300.19 = 858,300.19 : x
  2. Step 2: Convert to fraction form
    399,504.38/858,300.19 = 858,300.19/x
  3. Step 3: Cross multiply
    399,504.38x = 858,300.19 × 858,300.19
  4. Step 4: Simplify right side
    399,504.38x = 736,679,211,862.54
  5. Step 5: Solve for x
    x = 736,679,211,862.54/399,504.38
  6. Step 6: Final answer
    x = 1,843,982.84

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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.