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Finding the Fourth Proportional to 323,390.28, 485,086.32 and 113,028.24

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Solution

The fourth proportional to 323,390.28, 485,086.32 and 113,028.24 is: 169,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,390.28 : 485,086.32 = 113,028.24 : x
  2. Step 2: Convert to fraction form
    323,390.28/485,086.32 = 113,028.24/x
  3. Step 3: Cross multiply
    323,390.28x = 485,086.32 × 113,028.24
  4. Step 4: Simplify right side
    323,390.28x = 54,828,452,997.68
  5. Step 5: Solve for x
    x = 54,828,452,997.68/323,390.28
  6. Step 6: Final answer
    x = 169,542.67

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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.