Home / 355,923.35-491,174.25-194,778.49

Finding the Fourth Proportional to 355,923.35, 491,174.25 and 194,778.49

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Solution

The fourth proportional to 355,923.35, 491,174.25 and 194,778.49 is: 268,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,923.35 : 491,174.25 = 194,778.49 : x
  2. Step 2: Convert to fraction form
    355,923.35/491,174.25 = 194,778.49/x
  3. Step 3: Cross multiply
    355,923.35x = 491,174.25 × 194,778.49
  4. Step 4: Simplify right side
    355,923.35x = 95,670,178,741.88
  5. Step 5: Solve for x
    x = 95,670,178,741.88/355,923.35
  6. Step 6: Final answer
    x = 268,794.33

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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.