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Finding the Fourth Proportional to 328,286.70, 452,958.48 and 199,222.26

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Solution

The fourth proportional to 328,286.70, 452,958.48 and 199,222.26 is: 274,879.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,286.70 : 452,958.48 = 199,222.26 : x
  2. Step 2: Convert to fraction form
    328,286.70/452,958.48 = 199,222.26/x
  3. Step 3: Cross multiply
    328,286.70x = 452,958.48 × 199,222.26
  4. Step 4: Simplify right side
    328,286.70x = 90,239,412,071.76
  5. Step 5: Solve for x
    x = 90,239,412,071.76/328,286.70
  6. Step 6: Final answer
    x = 274,879.89

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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.