Home / 801,441.48-1,105,050.78-639,778.44

Finding the Fourth Proportional to 801,441.48, 1,105,050.78 and 639,778.44

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Solution

The fourth proportional to 801,441.48, 1,105,050.78 and 639,778.44 is: 882,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,441.48 : 1,105,050.78 = 639,778.44 : x
  2. Step 2: Convert to fraction form
    801,441.48/1,105,050.78 = 639,778.44/x
  3. Step 3: Cross multiply
    801,441.48x = 1,105,050.78 × 639,778.44
  4. Step 4: Simplify right side
    801,441.48x = 706,987,664,149.18
  5. Step 5: Solve for x
    x = 706,987,664,149.18/801,441.48
  6. Step 6: Final answer
    x = 882,145.09

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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.