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Finding the Fourth Proportional to 603,811.60, 905,688.60 and 204,413.20

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Solution

The fourth proportional to 603,811.60, 905,688.60 and 204,413.20 is: 306,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,811.60 : 905,688.60 = 204,413.20 : x
  2. Step 2: Convert to fraction form
    603,811.60/905,688.60 = 204,413.20/x
  3. Step 3: Cross multiply
    603,811.60x = 905,688.60 × 204,413.20
  4. Step 4: Simplify right side
    603,811.60x = 185,134,704,929.52
  5. Step 5: Solve for x
    x = 185,134,704,929.52/603,811.60
  6. Step 6: Final answer
    x = 306,610.05

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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.