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Finding the Fourth Proportional to 493,703.28, 681,310.36 and 267,348.72

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Solution

The fourth proportional to 493,703.28, 681,310.36 and 267,348.72 is: 368,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,703.28 : 681,310.36 = 267,348.72 : x
  2. Step 2: Convert to fraction form
    493,703.28/681,310.36 = 267,348.72/x
  3. Step 3: Cross multiply
    493,703.28x = 681,310.36 × 267,348.72
  4. Step 4: Simplify right side
    493,703.28x = 182,147,452,668.74
  5. Step 5: Solve for x
    x = 182,147,452,668.74/493,703.28
  6. Step 6: Final answer
    x = 368,941.14

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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.