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Finding the Fourth Proportional to 322,445.92, 483,668.24 and 85,788.56

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Solution

The fourth proportional to 322,445.92, 483,668.24 and 85,788.56 is: 128,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,445.92 : 483,668.24 = 85,788.56 : x
  2. Step 2: Convert to fraction form
    322,445.92/483,668.24 = 85,788.56/x
  3. Step 3: Cross multiply
    322,445.92x = 483,668.24 × 85,788.56
  4. Step 4: Simplify right side
    322,445.92x = 41,493,201,827.33
  5. Step 5: Solve for x
    x = 41,493,201,827.33/322,445.92
  6. Step 6: Final answer
    x = 128,682.67

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1.5x scale

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.