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Finding the Fourth Proportional to 488,221.66, 673,667.31 and 273,370.78

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Solution

The fourth proportional to 488,221.66, 673,667.31 and 273,370.78 is: 377,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,221.66 : 673,667.31 = 273,370.78 : x
  2. Step 2: Convert to fraction form
    488,221.66/673,667.31 = 273,370.78/x
  3. Step 3: Cross multiply
    488,221.66x = 673,667.31 × 273,370.78
  4. Step 4: Simplify right side
    488,221.66x = 184,160,957,995.20
  5. Step 5: Solve for x
    x = 184,160,957,995.20/488,221.66
  6. Step 6: Final answer
    x = 377,207.68

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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.