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Finding the Third Proportional to 641,611.13 and 858,602.53

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Solution

The third proportional to 641,611.13 and 858,602.53 is: 1,148,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,611.13 : 858,602.53 = 858,602.53 : x
  2. Step 2: Convert to fraction form
    641,611.13/858,602.53 = 858,602.53/x
  3. Step 3: Cross multiply
    641,611.13x = 858,602.53 × 858,602.53
  4. Step 4: Simplify right side
    641,611.13x = 737,198,306,668.91
  5. Step 5: Solve for x
    x = 737,198,306,668.91/641,611.13
  6. Step 6: Final answer
    x = 1,148,979.93

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.