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Finding the Fourth Proportional to 328,765.02, 453,691.90 and 192,770.88

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Solution

The fourth proportional to 328,765.02, 453,691.90 and 192,770.88 is: 266,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,765.02 : 453,691.90 = 192,770.88 : x
  2. Step 2: Convert to fraction form
    328,765.02/453,691.90 = 192,770.88/x
  3. Step 3: Cross multiply
    328,765.02x = 453,691.90 × 192,770.88
  4. Step 4: Simplify right side
    328,765.02x = 87,458,586,811.87
  5. Step 5: Solve for x
    x = 87,458,586,811.87/328,765.02
  6. Step 6: Final answer
    x = 266,021.57

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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.