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Finding the Third Proportional to 500,740 and 763,721

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Solution

The third proportional to 500,740 and 763,721 is: 1,164,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,740 : 763,721 = 763,721 : x
  2. Step 2: Convert to fraction form
    500,740/763,721 = 763,721/x
  3. Step 3: Cross multiply
    500,740x = 763,721 × 763,721
  4. Step 4: Simplify right side
    500,740x = 583,269,765,841
  5. Step 5: Solve for x
    x = 583,269,765,841/500,740
  6. Step 6: Final answer
    x = 1,164,815.60

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.