Home / 279,779.19-419,772.70-194,345.03

Finding the Fourth Proportional to 279,779.19, 419,772.70 and 194,345.03

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Solution

The fourth proportional to 279,779.19, 419,772.70 and 194,345.03 is: 291,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,779.19 : 419,772.70 = 194,345.03 : x
  2. Step 2: Convert to fraction form
    279,779.19/419,772.70 = 194,345.03/x
  3. Step 3: Cross multiply
    279,779.19x = 419,772.70 × 194,345.03
  4. Step 4: Simplify right side
    279,779.19x = 81,580,737,974.68
  5. Step 5: Solve for x
    x = 81,580,737,974.68/279,779.19
  6. Step 6: Final answer
    x = 291,589.73

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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.