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Finding the Fourth Proportional to 356,413.66, 491,850.85 and 195,274.81

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Solution

The fourth proportional to 356,413.66, 491,850.85 and 195,274.81 is: 269,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,413.66 : 491,850.85 = 195,274.81 : x
  2. Step 2: Convert to fraction form
    356,413.66/491,850.85 = 195,274.81/x
  3. Step 3: Cross multiply
    356,413.66x = 491,850.85 × 195,274.81
  4. Step 4: Simplify right side
    356,413.66x = 96,046,081,282.09
  5. Step 5: Solve for x
    x = 96,046,081,282.09/356,413.66
  6. Step 6: Final answer
    x = 269,479.24

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1.5x scale

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.