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Finding the Fourth Proportional to 408,867.80, 613,301.70 and 184,481.60

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Solution

The fourth proportional to 408,867.80, 613,301.70 and 184,481.60 is: 276,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,867.80 : 613,301.70 = 184,481.60 : x
  2. Step 2: Convert to fraction form
    408,867.80/613,301.70 = 184,481.60/x
  3. Step 3: Cross multiply
    408,867.80x = 613,301.70 × 184,481.60
  4. Step 4: Simplify right side
    408,867.80x = 113,142,878,898.72
  5. Step 5: Solve for x
    x = 113,142,878,898.72/408,867.80
  6. Step 6: Final answer
    x = 276,722.40

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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.