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Finding the Fourth Proportional to 383,440.80, 574,729.20 and 183,856.80

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Solution

The fourth proportional to 383,440.80, 574,729.20 and 183,856.80 is: 275,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,440.80 : 574,729.20 = 183,856.80 : x
  2. Step 2: Convert to fraction form
    383,440.80/574,729.20 = 183,856.80/x
  3. Step 3: Cross multiply
    383,440.80x = 574,729.20 × 183,856.80
  4. Step 4: Simplify right side
    383,440.80x = 105,667,871,578.56
  5. Step 5: Solve for x
    x = 105,667,871,578.56/383,440.80
  6. Step 6: Final answer
    x = 275,578.06

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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.