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Finding the Fourth Proportional to 352,413.42, 486,330.78 and 191,268.43

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Solution

The fourth proportional to 352,413.42, 486,330.78 and 191,268.43 is: 263,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,413.42 : 486,330.78 = 191,268.43 : x
  2. Step 2: Convert to fraction form
    352,413.42/486,330.78 = 191,268.43/x
  3. Step 3: Cross multiply
    352,413.42x = 486,330.78 × 191,268.43
  4. Step 4: Simplify right side
    352,413.42x = 93,019,723,340.83
  5. Step 5: Solve for x
    x = 93,019,723,340.83/352,413.42
  6. Step 6: Final answer
    x = 263,950.57

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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.