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Finding the Fourth Proportional to 481,464.72, 664,413.21 and 266,600.19

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Solution

The fourth proportional to 481,464.72, 664,413.21 and 266,600.19 is: 367,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,464.72 : 664,413.21 = 266,600.19 : x
  2. Step 2: Convert to fraction form
    481,464.72/664,413.21 = 266,600.19/x
  3. Step 3: Cross multiply
    481,464.72x = 664,413.21 × 266,600.19
  4. Step 4: Simplify right side
    481,464.72x = 177,132,688,024.51
  5. Step 5: Solve for x
    x = 177,132,688,024.51/481,464.72
  6. Step 6: Final answer
    x = 367,903.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.