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Finding the Fourth Proportional to 395,528.28, 545,926.70 and 225,860.84

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Solution

The fourth proportional to 395,528.28, 545,926.70 and 225,860.84 is: 311,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,528.28 : 545,926.70 = 225,860.84 : x
  2. Step 2: Convert to fraction form
    395,528.28/545,926.70 = 225,860.84/x
  3. Step 3: Cross multiply
    395,528.28x = 545,926.70 × 225,860.84
  4. Step 4: Simplify right side
    395,528.28x = 123,303,463,040.43
  5. Step 5: Solve for x
    x = 123,303,463,040.43/395,528.28
  6. Step 6: Final answer
    x = 311,743.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.