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Finding the Third Proportional to 890,557 and 2,100,175

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Solution

The third proportional to 890,557 and 2,100,175 is: 4,952,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,557 : 2,100,175 = 2,100,175 : x
  2. Step 2: Convert to fraction form
    890,557/2,100,175 = 2,100,175/x
  3. Step 3: Cross multiply
    890,557x = 2,100,175 × 2,100,175
  4. Step 4: Simplify right side
    890,557x = 4,410,735,030,625
  5. Step 5: Solve for x
    x = 4,410,735,030,625/890,557
  6. Step 6: Final answer
    x = 4,952,782.39

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.