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Finding the Fourth Proportional to 410,520.20, 616,413.90 and 223,896.20

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Solution

The fourth proportional to 410,520.20, 616,413.90 and 223,896.20 is: 336,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,520.20 : 616,413.90 = 223,896.20 : x
  2. Step 2: Convert to fraction form
    410,520.20/616,413.90 = 223,896.20/x
  3. Step 3: Cross multiply
    410,520.20x = 616,413.90 × 223,896.20
  4. Step 4: Simplify right side
    410,520.20x = 138,012,729,837.18
  5. Step 5: Solve for x
    x = 138,012,729,837.18/410,520.20
  6. Step 6: Final answer
    x = 336,189.86

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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.