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Finding the Third Proportional to 393,611.91 and 602,857.69

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Solution

The third proportional to 393,611.91 and 602,857.69 is: 923,339.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,611.91 : 602,857.69 = 602,857.69 : x
  2. Step 2: Convert to fraction form
    393,611.91/602,857.69 = 602,857.69/x
  3. Step 3: Cross multiply
    393,611.91x = 602,857.69 × 602,857.69
  4. Step 4: Simplify right side
    393,611.91x = 363,437,391,377.85
  5. Step 5: Solve for x
    x = 363,437,391,377.85/393,611.91
  6. Step 6: Final answer
    x = 923,339.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.