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Finding the Fourth Proportional to 458,661.15, 632,501.87 and 422,455.37

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Solution

The fourth proportional to 458,661.15, 632,501.87 and 422,455.37 is: 582,573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,661.15 : 632,501.87 = 422,455.37 : x
  2. Step 2: Convert to fraction form
    458,661.15/632,501.87 = 422,455.37/x
  3. Step 3: Cross multiply
    458,661.15x = 632,501.87 × 422,455.37
  4. Step 4: Simplify right side
    458,661.15x = 267,203,806,241.76
  5. Step 5: Solve for x
    x = 267,203,806,241.76/458,661.15
  6. Step 6: Final answer
    x = 582,573.44

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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.