Home / 823,000.86-1,234,413.27-261,991.62

Finding the Fourth Proportional to 823,000.86, 1,234,413.27 and 261,991.62

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Solution

The fourth proportional to 823,000.86, 1,234,413.27 and 261,991.62 is: 392,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,000.86 : 1,234,413.27 = 261,991.62 : x
  2. Step 2: Convert to fraction form
    823,000.86/1,234,413.27 = 261,991.62/x
  3. Step 3: Cross multiply
    823,000.86x = 1,234,413.27 × 261,991.62
  4. Step 4: Simplify right side
    823,000.86x = 323,405,932,356.80
  5. Step 5: Solve for x
    x = 323,405,932,356.80/823,000.86
  6. Step 6: Final answer
    x = 392,959.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.