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Finding the Third Proportional to 393,195.09 and 859,984.59

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Solution

The third proportional to 393,195.09 and 859,984.59 is: 1,880,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,195.09 : 859,984.59 = 859,984.59 : x
  2. Step 2: Convert to fraction form
    393,195.09/859,984.59 = 859,984.59/x
  3. Step 3: Cross multiply
    393,195.09x = 859,984.59 × 859,984.59
  4. Step 4: Simplify right side
    393,195.09x = 739,573,501,487.35
  5. Step 5: Solve for x
    x = 739,573,501,487.35/393,195.09
  6. Step 6: Final answer
    x = 1,880,932.68

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.