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Finding the Fourth Proportional to 324,151.99, 486,210.40 and 99,512.46

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Solution

The fourth proportional to 324,151.99, 486,210.40 and 99,512.46 is: 149,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,151.99 : 486,210.40 = 99,512.46 : x
  2. Step 2: Convert to fraction form
    324,151.99/486,210.40 = 99,512.46/x
  3. Step 3: Cross multiply
    324,151.99x = 486,210.40 × 99,512.46
  4. Step 4: Simplify right side
    324,151.99x = 48,383,992,732.80
  5. Step 5: Solve for x
    x = 48,383,992,732.80/324,151.99
  6. Step 6: Final answer
    x = 149,263.29

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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.