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Finding the Fourth Proportional to 352,400.97, 486,316.98 and 191,257.41

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Solution

The fourth proportional to 352,400.97, 486,316.98 and 191,257.41 is: 263,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,400.97 : 486,316.98 = 191,257.41 : x
  2. Step 2: Convert to fraction form
    352,400.97/486,316.98 = 191,257.41/x
  3. Step 3: Cross multiply
    352,400.97x = 486,316.98 × 191,257.41
  4. Step 4: Simplify right side
    352,400.97x = 93,011,726,033.82
  5. Step 5: Solve for x
    x = 93,011,726,033.82/352,400.97
  6. Step 6: Final answer
    x = 263,937.20

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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.