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Finding the Fourth Proportional to 467,667.82, 644,951.19 and 306,464.32

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Solution

The fourth proportional to 467,667.82, 644,951.19 and 306,464.32 is: 422,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,667.82 : 644,951.19 = 306,464.32 : x
  2. Step 2: Convert to fraction form
    467,667.82/644,951.19 = 306,464.32/x
  3. Step 3: Cross multiply
    467,667.82x = 644,951.19 × 306,464.32
  4. Step 4: Simplify right side
    467,667.82x = 197,654,527,876.54
  5. Step 5: Solve for x
    x = 197,654,527,876.54/467,667.82
  6. Step 6: Final answer
    x = 422,638.72

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1.5x scale

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.