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Finding the Third Proportional to 999,772 and 2,157,008

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Solution

The third proportional to 999,772 and 2,157,008 is: 4,653,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,772 : 2,157,008 = 2,157,008 : x
  2. Step 2: Convert to fraction form
    999,772/2,157,008 = 2,157,008/x
  3. Step 3: Cross multiply
    999,772x = 2,157,008 × 2,157,008
  4. Step 4: Simplify right side
    999,772x = 4,652,683,512,064
  5. Step 5: Solve for x
    x = 4,652,683,512,064/999,772
  6. Step 6: Final answer
    x = 4,653,744.57

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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.