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Finding the Fourth Proportional to 1,738,234.40, 2,605,796.40 and 672,922.40

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Solution

The fourth proportional to 1,738,234.40, 2,605,796.40 and 672,922.40 is: 1,008,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,234.40 : 2,605,796.40 = 672,922.40 : x
  2. Step 2: Convert to fraction form
    1,738,234.40/2,605,796.40 = 672,922.40/x
  3. Step 3: Cross multiply
    1,738,234.40x = 2,605,796.40 × 672,922.40
  4. Step 4: Simplify right side
    1,738,234.40x = 1,753,498,767,399.36
  5. Step 5: Solve for x
    x = 1,753,498,767,399.36/1,738,234.40
  6. Step 6: Final answer
    x = 1,008,781.54

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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.