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Finding the Fourth Proportional to 326,469.60, 450,621.36 and 211,745.76

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Solution

The fourth proportional to 326,469.60, 450,621.36 and 211,745.76 is: 292,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,469.60 : 450,621.36 = 211,745.76 : x
  2. Step 2: Convert to fraction form
    326,469.60/450,621.36 = 211,745.76/x
  3. Step 3: Cross multiply
    326,469.60x = 450,621.36 × 211,745.76
  4. Step 4: Simplify right side
    326,469.60x = 95,417,162,345.43
  5. Step 5: Solve for x
    x = 95,417,162,345.43/326,469.60
  6. Step 6: Final answer
    x = 292,269.67

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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.