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Finding the Fourth Proportional to 352,414.63, 486,336.86 and 191,271.61

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Solution

The fourth proportional to 352,414.63, 486,336.86 and 191,271.61 is: 263,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,414.63 : 486,336.86 = 191,271.61 : x
  2. Step 2: Convert to fraction form
    352,414.63/486,336.86 = 191,271.61/x
  3. Step 3: Cross multiply
    352,414.63x = 486,336.86 × 191,271.61
  4. Step 4: Simplify right side
    352,414.63x = 93,022,434,214.54
  5. Step 5: Solve for x
    x = 93,022,434,214.54/352,414.63
  6. Step 6: Final answer
    x = 263,957.36

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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.