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Finding the Fourth Proportional to 284,653.44, 392,817.60 and 171,538.56

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Solution

The fourth proportional to 284,653.44, 392,817.60 and 171,538.56 is: 236,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,653.44 : 392,817.60 = 171,538.56 : x
  2. Step 2: Convert to fraction form
    284,653.44/392,817.60 = 171,538.56/x
  3. Step 3: Cross multiply
    284,653.44x = 392,817.60 × 171,538.56
  4. Step 4: Simplify right side
    284,653.44x = 67,383,365,446.66
  5. Step 5: Solve for x
    x = 67,383,365,446.66/284,653.44
  6. Step 6: Final answer
    x = 236,720.71

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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.