Home / 407,928.65-611,719.92-194,449.59

Finding the Fourth Proportional to 407,928.65, 611,719.92 and 194,449.59

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Solution

The fourth proportional to 407,928.65, 611,719.92 and 194,449.59 is: 291,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,928.65 : 611,719.92 = 194,449.59 : x
  2. Step 2: Convert to fraction form
    407,928.65/611,719.92 = 194,449.59/x
  3. Step 3: Cross multiply
    407,928.65x = 611,719.92 × 194,449.59
  4. Step 4: Simplify right side
    407,928.65x = 118,948,687,638.83
  5. Step 5: Solve for x
    x = 118,948,687,638.83/407,928.65
  6. Step 6: Final answer
    x = 291,591.90

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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.