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Finding the Third Proportional to 393,777.70 and 858,826.55

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Solution

The third proportional to 393,777.70 and 858,826.55 is: 1,873,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,777.70 : 858,826.55 = 858,826.55 : x
  2. Step 2: Convert to fraction form
    393,777.70/858,826.55 = 858,826.55/x
  3. Step 3: Cross multiply
    393,777.70x = 858,826.55 × 858,826.55
  4. Step 4: Simplify right side
    393,777.70x = 737,583,037,617.24
  5. Step 5: Solve for x
    x = 737,583,037,617.24/393,777.70
  6. Step 6: Final answer
    x = 1,873,094.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.