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Finding the Fourth Proportional to 352,413.71, 486,318.59 and 191,265.53

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Solution

The fourth proportional to 352,413.71, 486,318.59 and 191,265.53 is: 263,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,413.71 : 486,318.59 = 191,265.53 : x
  2. Step 2: Convert to fraction form
    352,413.71/486,318.59 = 191,265.53/x
  3. Step 3: Cross multiply
    352,413.71x = 486,318.59 × 191,265.53
  4. Step 4: Simplify right side
    352,413.71x = 93,015,981,908.88
  5. Step 5: Solve for x
    x = 93,015,981,908.88/352,413.71
  6. Step 6: Final answer
    x = 263,939.74

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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.