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Finding the Third Proportional to 393,100.59 and 859,809.94

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Solution

The third proportional to 393,100.59 and 859,809.94 is: 1,880,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,100.59 : 859,809.94 = 859,809.94 : x
  2. Step 2: Convert to fraction form
    393,100.59/859,809.94 = 859,809.94/x
  3. Step 3: Cross multiply
    393,100.59x = 859,809.94 × 859,809.94
  4. Step 4: Simplify right side
    393,100.59x = 739,273,128,623.75
  5. Step 5: Solve for x
    x = 739,273,128,623.75/393,100.59
  6. Step 6: Final answer
    x = 1,880,620.74

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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.