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Finding the Fourth Proportional to 353,561.47, 487,905.47 and 192,413.05

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Solution

The fourth proportional to 353,561.47, 487,905.47 and 192,413.05 is: 265,524.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,561.47 : 487,905.47 = 192,413.05 : x
  2. Step 2: Convert to fraction form
    353,561.47/487,905.47 = 192,413.05/x
  3. Step 3: Cross multiply
    353,561.47x = 487,905.47 × 192,413.05
  4. Step 4: Simplify right side
    353,561.47x = 93,879,379,594.38
  5. Step 5: Solve for x
    x = 93,879,379,594.38/353,561.47
  6. Step 6: Final answer
    x = 265,524.92

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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.