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Finding the Fourth Proportional to 493,745.84, 681,367.80 and 267,391.28

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Solution

The fourth proportional to 493,745.84, 681,367.80 and 267,391.28 is: 368,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,745.84 : 681,367.80 = 267,391.28 : x
  2. Step 2: Convert to fraction form
    493,745.84/681,367.80 = 267,391.28/x
  3. Step 3: Cross multiply
    493,745.84x = 681,367.80 × 267,391.28
  4. Step 4: Simplify right side
    493,745.84x = 182,191,808,192.78
  5. Step 5: Solve for x
    x = 182,191,808,192.78/493,745.84
  6. Step 6: Final answer
    x = 368,999.18

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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.