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Finding the Fourth Proportional to 324,216.60, 447,513.94 and 188,311.66

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Solution

The fourth proportional to 324,216.60, 447,513.94 and 188,311.66 is: 259,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,216.60 : 447,513.94 = 188,311.66 : x
  2. Step 2: Convert to fraction form
    324,216.60/447,513.94 = 188,311.66/x
  3. Step 3: Cross multiply
    324,216.60x = 447,513.94 × 188,311.66
  4. Step 4: Simplify right side
    324,216.60x = 84,272,092,914.54
  5. Step 5: Solve for x
    x = 84,272,092,914.54/324,216.60
  6. Step 6: Final answer
    x = 259,925.29

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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.