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Finding the Fourth Proportional to 1,997,662.56, 2,996,908.56 and 667,932

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Solution

The fourth proportional to 1,997,662.56, 2,996,908.56 and 667,932 is: 1,002,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,662.56 : 2,996,908.56 = 667,932 : x
  2. Step 2: Convert to fraction form
    1,997,662.56/2,996,908.56 = 667,932/x
  3. Step 3: Cross multiply
    1,997,662.56x = 2,996,908.56 × 667,932
  4. Step 4: Simplify right side
    1,997,662.56x = 2,001,731,128,297.92
  5. Step 5: Solve for x
    x = 2,001,731,128,297.92/1,997,662.56
  6. Step 6: Final answer
    x = 1,002,036.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.