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Finding the Third Proportional to 665,019 and 1,031,836.50

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Solution

The third proportional to 665,019 and 1,031,836.50 is: 1,600,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,019 : 1,031,836.50 = 1,031,836.50 : x
  2. Step 2: Convert to fraction form
    665,019/1,031,836.50 = 1,031,836.50/x
  3. Step 3: Cross multiply
    665,019x = 1,031,836.50 × 1,031,836.50
  4. Step 4: Simplify right side
    665,019x = 1,064,686,562,732.25
  5. Step 5: Solve for x
    x = 1,064,686,562,732.25/665,019
  6. Step 6: Final answer
    x = 1,600,986.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.