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Finding the Fourth Proportional to 362,186.80, 499,793.52 and 219,025.76

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Solution

The fourth proportional to 362,186.80, 499,793.52 and 219,025.76 is: 302,240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,186.80 : 499,793.52 = 219,025.76 : x
  2. Step 2: Convert to fraction form
    362,186.80/499,793.52 = 219,025.76/x
  3. Step 3: Cross multiply
    362,186.80x = 499,793.52 × 219,025.76
  4. Step 4: Simplify right side
    362,186.80x = 109,467,655,561.08
  5. Step 5: Solve for x
    x = 109,467,655,561.08/362,186.80
  6. Step 6: Final answer
    x = 302,240.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.