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Finding the Fourth Proportional to 657,182.60, 985,349.97 and 257,863.71

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Solution

The fourth proportional to 657,182.60, 985,349.97 and 257,863.71 is: 386,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,182.60 : 985,349.97 = 257,863.71 : x
  2. Step 2: Convert to fraction form
    657,182.60/985,349.97 = 257,863.71/x
  3. Step 3: Cross multiply
    657,182.60x = 985,349.97 × 257,863.71
  4. Step 4: Simplify right side
    657,182.60x = 254,085,998,912.59
  5. Step 5: Solve for x
    x = 254,085,998,912.59/657,182.60
  6. Step 6: Final answer
    x = 386,629.23

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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.