Home / 381,566.40-571,888.80-194,481.60

Finding the Fourth Proportional to 381,566.40, 571,888.80 and 194,481.60

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Solution

The fourth proportional to 381,566.40, 571,888.80 and 194,481.60 is: 291,487.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,566.40 : 571,888.80 = 194,481.60 : x
  2. Step 2: Convert to fraction form
    381,566.40/571,888.80 = 194,481.60/x
  3. Step 3: Cross multiply
    381,566.40x = 571,888.80 × 194,481.60
  4. Step 4: Simplify right side
    381,566.40x = 111,221,848,846.08
  5. Step 5: Solve for x
    x = 111,221,848,846.08/381,566.40
  6. Step 6: Final answer
    x = 291,487.53

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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.