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Finding the Fourth Proportional to 490,476.16, 735,413.14 and 190,606.56

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Solution

The fourth proportional to 490,476.16, 735,413.14 and 190,606.56 is: 285,792.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,476.16 : 735,413.14 = 190,606.56 : x
  2. Step 2: Convert to fraction form
    490,476.16/735,413.14 = 190,606.56/x
  3. Step 3: Cross multiply
    490,476.16x = 735,413.14 × 190,606.56
  4. Step 4: Simplify right side
    490,476.16x = 140,174,568,794.20
  5. Step 5: Solve for x
    x = 140,174,568,794.20/490,476.16
  6. Step 6: Final answer
    x = 285,792.83

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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.