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Finding the Fourth Proportional to 324,427.52, 486,640.80 and 102,794.24

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Solution

The fourth proportional to 324,427.52, 486,640.80 and 102,794.24 is: 154,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,427.52 : 486,640.80 = 102,794.24 : x
  2. Step 2: Convert to fraction form
    324,427.52/486,640.80 = 102,794.24/x
  3. Step 3: Cross multiply
    324,427.52x = 486,640.80 × 102,794.24
  4. Step 4: Simplify right side
    324,427.52x = 50,023,871,188.99
  5. Step 5: Solve for x
    x = 50,023,871,188.99/324,427.52
  6. Step 6: Final answer
    x = 154,191.21

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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.