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Finding the Fourth Proportional to 220,231.60, 308,531.60 and 220,231.60

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Solution

The fourth proportional to 220,231.60, 308,531.60 and 220,231.60 is: 308,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,231.60 : 308,531.60 = 220,231.60 : x
  2. Step 2: Convert to fraction form
    220,231.60/308,531.60 = 220,231.60/x
  3. Step 3: Cross multiply
    220,231.60x = 308,531.60 × 220,231.60
  4. Step 4: Simplify right side
    220,231.60x = 67,948,407,918.56
  5. Step 5: Solve for x
    x = 67,948,407,918.56/220,231.60
  6. Step 6: Final answer
    x = 308,531.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.