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Finding the Fourth Proportional to 493,657.50, 681,252.21 and 267,307.86

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Solution

The fourth proportional to 493,657.50, 681,252.21 and 267,307.86 is: 368,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,657.50 : 681,252.21 = 267,307.86 : x
  2. Step 2: Convert to fraction form
    493,657.50/681,252.21 = 267,307.86/x
  3. Step 3: Cross multiply
    493,657.50x = 681,252.21 × 267,307.86
  4. Step 4: Simplify right side
    493,657.50x = 182,104,070,375.37
  5. Step 5: Solve for x
    x = 182,104,070,375.37/493,657.50
  6. Step 6: Final answer
    x = 368,887.48

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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.