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Finding the Fourth Proportional to 324,867.96, 487,447.38 and 206,508.60

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Solution

The fourth proportional to 324,867.96, 487,447.38 and 206,508.60 is: 309,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,867.96 : 487,447.38 = 206,508.60 : x
  2. Step 2: Convert to fraction form
    324,867.96/487,447.38 = 206,508.60/x
  3. Step 3: Cross multiply
    324,867.96x = 487,447.38 × 206,508.60
  4. Step 4: Simplify right side
    324,867.96x = 100,662,076,017.47
  5. Step 5: Solve for x
    x = 100,662,076,017.47/324,867.96
  6. Step 6: Final answer
    x = 309,855.35

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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.