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Finding the Fourth Proportional to 333,105.42, 499,653.46 and 80,383.80

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Solution

The fourth proportional to 333,105.42, 499,653.46 and 80,383.80 is: 120,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,105.42 : 499,653.46 = 80,383.80 : x
  2. Step 2: Convert to fraction form
    333,105.42/499,653.46 = 80,383.80/x
  3. Step 3: Cross multiply
    333,105.42x = 499,653.46 × 80,383.80
  4. Step 4: Simplify right side
    333,105.42x = 40,164,043,797.95
  5. Step 5: Solve for x
    x = 40,164,043,797.95/333,105.42
  6. Step 6: Final answer
    x = 120,574.57

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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.