Home / 1,279,404.68-1,919,771.20-521,801.96

Finding the Fourth Proportional to 1,279,404.68, 1,919,771.20 and 521,801.96

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Solution

The fourth proportional to 1,279,404.68, 1,919,771.20 and 521,801.96 is: 782,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,404.68 : 1,919,771.20 = 521,801.96 : x
  2. Step 2: Convert to fraction form
    1,279,404.68/1,919,771.20 = 521,801.96/x
  3. Step 3: Cross multiply
    1,279,404.68x = 1,919,771.20 × 521,801.96
  4. Step 4: Simplify right side
    1,279,404.68x = 1,001,740,373,164.09
  5. Step 5: Solve for x
    x = 1,001,740,373,164.09/1,279,404.68
  6. Step 6: Final answer
    x = 782,973.82

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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.