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Finding the Third Proportional to 431,189.25 and 907,062.75

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Solution

The third proportional to 431,189.25 and 907,062.75 is: 1,908,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,189.25 : 907,062.75 = 907,062.75 : x
  2. Step 2: Convert to fraction form
    431,189.25/907,062.75 = 907,062.75/x
  3. Step 3: Cross multiply
    431,189.25x = 907,062.75 × 907,062.75
  4. Step 4: Simplify right side
    431,189.25x = 822,762,832,437.56
  5. Step 5: Solve for x
    x = 822,762,832,437.56/431,189.25
  6. Step 6: Final answer
    x = 1,908,124.64

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.