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Finding the Fourth Proportional to 489,539.40, 733,920.30 and 267,923.40

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Solution

The fourth proportional to 489,539.40, 733,920.30 and 267,923.40 is: 401,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,539.40 : 733,920.30 = 267,923.40 : x
  2. Step 2: Convert to fraction form
    489,539.40/733,920.30 = 267,923.40/x
  3. Step 3: Cross multiply
    489,539.40x = 733,920.30 × 267,923.40
  4. Step 4: Simplify right side
    489,539.40x = 196,634,422,105.02
  5. Step 5: Solve for x
    x = 196,634,422,105.02/489,539.40
  6. Step 6: Final answer
    x = 401,672.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.