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Finding the Third Proportional to 777,136 and 1,672,369

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Solution

The third proportional to 777,136 and 1,672,369 is: 3,598,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,136 : 1,672,369 = 1,672,369 : x
  2. Step 2: Convert to fraction form
    777,136/1,672,369 = 1,672,369/x
  3. Step 3: Cross multiply
    777,136x = 1,672,369 × 1,672,369
  4. Step 4: Simplify right side
    777,136x = 2,796,818,072,161
  5. Step 5: Solve for x
    x = 2,796,818,072,161/777,136
  6. Step 6: Final answer
    x = 3,598,878.54

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.