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Finding the Fourth Proportional to 483,209.76, 666,811.21 and 268,363.67

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Solution

The fourth proportional to 483,209.76, 666,811.21 and 268,363.67 is: 370,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,209.76 : 666,811.21 = 268,363.67 : x
  2. Step 2: Convert to fraction form
    483,209.76/666,811.21 = 268,363.67/x
  3. Step 3: Cross multiply
    483,209.76x = 666,811.21 × 268,363.67
  4. Step 4: Simplify right side
    483,209.76x = 178,947,900,765.73
  5. Step 5: Solve for x
    x = 178,947,900,765.73/483,209.76
  6. Step 6: Final answer
    x = 370,331.72

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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.