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Finding the Fourth Proportional to 225,906.60, 338,859.90 and 222,407.40

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Solution

The fourth proportional to 225,906.60, 338,859.90 and 222,407.40 is: 333,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,906.60 : 338,859.90 = 222,407.40 : x
  2. Step 2: Convert to fraction form
    225,906.60/338,859.90 = 222,407.40/x
  3. Step 3: Cross multiply
    225,906.60x = 338,859.90 × 222,407.40
  4. Step 4: Simplify right side
    225,906.60x = 75,364,949,323.26
  5. Step 5: Solve for x
    x = 75,364,949,323.26/225,906.60
  6. Step 6: Final answer
    x = 333,611.10

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1.5x scale

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.