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Finding the Third Proportional to 442,170 and 947,418.75

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Solution

The third proportional to 442,170 and 947,418.75 is: 2,029,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,170 : 947,418.75 = 947,418.75 : x
  2. Step 2: Convert to fraction form
    442,170/947,418.75 = 947,418.75/x
  3. Step 3: Cross multiply
    442,170x = 947,418.75 × 947,418.75
  4. Step 4: Simplify right side
    442,170x = 897,602,287,851.56
  5. Step 5: Solve for x
    x = 897,602,287,851.56/442,170
  6. Step 6: Final answer
    x = 2,029,993.64

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.