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Finding the Fourth Proportional to 467,267.76, 644,626.04 and 285,987.76

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Solution

The fourth proportional to 467,267.76, 644,626.04 and 285,987.76 is: 394,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,267.76 : 644,626.04 = 285,987.76 : x
  2. Step 2: Convert to fraction form
    467,267.76/644,626.04 = 285,987.76/x
  3. Step 3: Cross multiply
    467,267.76x = 644,626.04 × 285,987.76
  4. Step 4: Simplify right side
    467,267.76x = 184,355,157,217.27
  5. Step 5: Solve for x
    x = 184,355,157,217.27/467,267.76
  6. Step 6: Final answer
    x = 394,538.58

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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.