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Finding the Fourth Proportional to 307,575.60, 460,974.60 and 274,138.80

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Solution

The fourth proportional to 307,575.60, 460,974.60 and 274,138.80 is: 410,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,575.60 : 460,974.60 = 274,138.80 : x
  2. Step 2: Convert to fraction form
    307,575.60/460,974.60 = 274,138.80/x
  3. Step 3: Cross multiply
    307,575.60x = 460,974.60 × 274,138.80
  4. Step 4: Simplify right side
    307,575.60x = 126,371,023,674.48
  5. Step 5: Solve for x
    x = 126,371,023,674.48/307,575.60
  6. Step 6: Final answer
    x = 410,861.67

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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.