Home / 345,789.62-477,191.75-192,837.47

Finding the Fourth Proportional to 345,789.62, 477,191.75 and 192,837.47

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Solution

The fourth proportional to 345,789.62, 477,191.75 and 192,837.47 is: 266,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,789.62 : 477,191.75 = 192,837.47 : x
  2. Step 2: Convert to fraction form
    345,789.62/477,191.75 = 192,837.47/x
  3. Step 3: Cross multiply
    345,789.62x = 477,191.75 × 192,837.47
  4. Step 4: Simplify right side
    345,789.62x = 92,020,451,449.95
  5. Step 5: Solve for x
    x = 92,020,451,449.95/345,789.62
  6. Step 6: Final answer
    x = 266,116.87

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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.