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Finding the Fourth Proportional to 491,502.76, 737,431.60 and 171,701.88

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Solution

The fourth proportional to 491,502.76, 737,431.60 and 171,701.88 is: 257,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,502.76 : 737,431.60 = 171,701.88 : x
  2. Step 2: Convert to fraction form
    491,502.76/737,431.60 = 171,701.88/x
  3. Step 3: Cross multiply
    491,502.76x = 737,431.60 × 171,701.88
  4. Step 4: Simplify right side
    491,502.76x = 126,618,392,091.41
  5. Step 5: Solve for x
    x = 126,618,392,091.41/491,502.76
  6. Step 6: Final answer
    x = 257,614.81

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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.