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Finding the Fourth Proportional to 320,591.57, 480,912.26 and 107,360.28

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Solution

The fourth proportional to 320,591.57, 480,912.26 and 107,360.28 is: 161,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,591.57 : 480,912.26 = 107,360.28 : x
  2. Step 2: Convert to fraction form
    320,591.57/480,912.26 = 107,360.28/x
  3. Step 3: Cross multiply
    320,591.57x = 480,912.26 × 107,360.28
  4. Step 4: Simplify right side
    320,591.57x = 51,630,874,352.23
  5. Step 5: Solve for x
    x = 51,630,874,352.23/320,591.57
  6. Step 6: Final answer
    x = 161,048.76

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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.