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Finding the Third Proportional to 393,336 and 590,388

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Solution

The third proportional to 393,336 and 590,388 is: 886,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,336 : 590,388 = 590,388 : x
  2. Step 2: Convert to fraction form
    393,336/590,388 = 590,388/x
  3. Step 3: Cross multiply
    393,336x = 590,388 × 590,388
  4. Step 4: Simplify right side
    393,336x = 348,557,990,544
  5. Step 5: Solve for x
    x = 348,557,990,544/393,336
  6. Step 6: Final answer
    x = 886,158.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.