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Finding the Fourth Proportional to 458,338.20, 632,582.82 and 267,351.72

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Solution

The fourth proportional to 458,338.20, 632,582.82 and 267,351.72 is: 368,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,338.20 : 632,582.82 = 267,351.72 : x
  2. Step 2: Convert to fraction form
    458,338.20/632,582.82 = 267,351.72/x
  3. Step 3: Cross multiply
    458,338.20x = 632,582.82 × 267,351.72
  4. Step 4: Simplify right side
    458,338.20x = 169,122,104,969.45
  5. Step 5: Solve for x
    x = 169,122,104,969.45/458,338.20
  6. Step 6: Final answer
    x = 368,989.77

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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.