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Finding the Third Proportional to 623,832 and 991,738

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Solution

The third proportional to 623,832 and 991,738 is: 1,576,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,832 : 991,738 = 991,738 : x
  2. Step 2: Convert to fraction form
    623,832/991,738 = 991,738/x
  3. Step 3: Cross multiply
    623,832x = 991,738 × 991,738
  4. Step 4: Simplify right side
    623,832x = 983,544,260,644
  5. Step 5: Solve for x
    x = 983,544,260,644/623,832
  6. Step 6: Final answer
    x = 1,576,617.20

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.