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Finding the Fourth Proportional to 324,930.64, 487,240.96 and 190,032.72

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Solution

The fourth proportional to 324,930.64, 487,240.96 and 190,032.72 is: 284,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,930.64 : 487,240.96 = 190,032.72 : x
  2. Step 2: Convert to fraction form
    324,930.64/487,240.96 = 190,032.72/x
  3. Step 3: Cross multiply
    324,930.64x = 487,240.96 × 190,032.72
  4. Step 4: Simplify right side
    324,930.64x = 92,591,724,924.21
  5. Step 5: Solve for x
    x = 92,591,724,924.21/324,930.64
  6. Step 6: Final answer
    x = 284,958.43

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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.