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Finding the Fourth Proportional to 619,133.72, 928,546.74 and 349,380.27

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Solution

The fourth proportional to 619,133.72, 928,546.74 and 349,380.27 is: 523,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,133.72 : 928,546.74 = 349,380.27 : x
  2. Step 2: Convert to fraction form
    619,133.72/928,546.74 = 349,380.27/x
  3. Step 3: Cross multiply
    619,133.72x = 928,546.74 × 349,380.27
  4. Step 4: Simplify right side
    619,133.72x = 324,415,910,728.82
  5. Step 5: Solve for x
    x = 324,415,910,728.82/619,133.72
  6. Step 6: Final answer
    x = 523,983.60

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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.