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Finding the Fourth Proportional to 619,704, 855,224.13 and 347,757.84

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Solution

The fourth proportional to 619,704, 855,224.13 and 347,757.84 is: 479,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,704 : 855,224.13 = 347,757.84 : x
  2. Step 2: Convert to fraction form
    619,704/855,224.13 = 347,757.84/x
  3. Step 3: Cross multiply
    619,704x = 855,224.13 × 347,757.84
  4. Step 4: Simplify right side
    619,704x = 297,410,896,164.68
  5. Step 5: Solve for x
    x = 297,410,896,164.68/619,704
  6. Step 6: Final answer
    x = 479,924.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.