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Finding the Fourth Proportional to 619,133.20, 928,545.99 and 349,379.77

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Solution

The fourth proportional to 619,133.20, 928,545.99 and 349,379.77 is: 523,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,133.20 : 928,545.99 = 349,379.77 : x
  2. Step 2: Convert to fraction form
    619,133.20/928,545.99 = 349,379.77/x
  3. Step 3: Cross multiply
    619,133.20x = 928,545.99 × 349,379.77
  4. Step 4: Simplify right side
    619,133.20x = 324,415,184,420.62
  5. Step 5: Solve for x
    x = 324,415,184,420.62/619,133.20
  6. Step 6: Final answer
    x = 523,982.86

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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.