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Finding the Fourth Proportional to 352,638.27, 486,646.62 and 199,672.43

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Solution

The fourth proportional to 352,638.27, 486,646.62 and 199,672.43 is: 275,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,638.27 : 486,646.62 = 199,672.43 : x
  2. Step 2: Convert to fraction form
    352,638.27/486,646.62 = 199,672.43/x
  3. Step 3: Cross multiply
    352,638.27x = 486,646.62 × 199,672.43
  4. Step 4: Simplify right side
    352,638.27x = 97,169,909,984.68
  5. Step 5: Solve for x
    x = 97,169,909,984.68/352,638.27
  6. Step 6: Final answer
    x = 275,551.23

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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.