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Finding the Third Proportional to 886,689 and 1,921,553

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Solution

The third proportional to 886,689 and 1,921,553 is: 4,164,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,689 : 1,921,553 = 1,921,553 : x
  2. Step 2: Convert to fraction form
    886,689/1,921,553 = 1,921,553/x
  3. Step 3: Cross multiply
    886,689x = 1,921,553 × 1,921,553
  4. Step 4: Simplify right side
    886,689x = 3,692,365,931,809
  5. Step 5: Solve for x
    x = 3,692,365,931,809/886,689
  6. Step 6: Final answer
    x = 4,164,217.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.