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Finding the Fourth Proportional to 458,208.11, 632,986.78 and 366,209.60

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Solution

The fourth proportional to 458,208.11, 632,986.78 and 366,209.60 is: 505,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,208.11 : 632,986.78 = 366,209.60 : x
  2. Step 2: Convert to fraction form
    458,208.11/632,986.78 = 366,209.60/x
  3. Step 3: Cross multiply
    458,208.11x = 632,986.78 × 366,209.60
  4. Step 4: Simplify right side
    458,208.11x = 231,805,840,101.79
  5. Step 5: Solve for x
    x = 231,805,840,101.79/458,208.11
  6. Step 6: Final answer
    x = 505,896.42

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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.