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Finding the Third Proportional to 891,064 and 1,921,232

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Solution

The third proportional to 891,064 and 1,921,232 is: 4,142,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,064 : 1,921,232 = 1,921,232 : x
  2. Step 2: Convert to fraction form
    891,064/1,921,232 = 1,921,232/x
  3. Step 3: Cross multiply
    891,064x = 1,921,232 × 1,921,232
  4. Step 4: Simplify right side
    891,064x = 3,691,132,397,824
  5. Step 5: Solve for x
    x = 3,691,132,397,824/891,064
  6. Step 6: Final answer
    x = 4,142,387.53

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.