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Finding the Third Proportional to 393,139.13 and 859,884.13

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Solution

The third proportional to 393,139.13 and 859,884.13 is: 1,880,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,139.13 : 859,884.13 = 859,884.13 : x
  2. Step 2: Convert to fraction form
    393,139.13/859,884.13 = 859,884.13/x
  3. Step 3: Cross multiply
    393,139.13x = 859,884.13 × 859,884.13
  4. Step 4: Simplify right side
    393,139.13x = 739,400,708,427.02
  5. Step 5: Solve for x
    x = 739,400,708,427.02/393,139.13
  6. Step 6: Final answer
    x = 1,880,760.94

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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.