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Finding the Fourth Proportional to 215,287.44, 324,953.28 and 215,287.44

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Solution

The fourth proportional to 215,287.44, 324,953.28 and 215,287.44 is: 324,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,287.44 : 324,953.28 = 215,287.44 : x
  2. Step 2: Convert to fraction form
    215,287.44/324,953.28 = 215,287.44/x
  3. Step 3: Cross multiply
    215,287.44x = 324,953.28 × 215,287.44
  4. Step 4: Simplify right side
    215,287.44x = 69,958,359,770.80
  5. Step 5: Solve for x
    x = 69,958,359,770.80/215,287.44
  6. Step 6: Final answer
    x = 324,953.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.