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Finding the Fourth Proportional to 539,413.20, 809,443.80 and 223,837.20

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Solution

The fourth proportional to 539,413.20, 809,443.80 and 223,837.20 is: 335,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,413.20 : 809,443.80 = 223,837.20 : x
  2. Step 2: Convert to fraction form
    539,413.20/809,443.80 = 223,837.20/x
  3. Step 3: Cross multiply
    539,413.20x = 809,443.80 × 223,837.20
  4. Step 4: Simplify right side
    539,413.20x = 181,183,633,749.36
  5. Step 5: Solve for x
    x = 181,183,633,749.36/539,413.20
  6. Step 6: Final answer
    x = 335,890.25

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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.