Home / 1,238,469.60-1,857,704.40-528,520.80

Finding the Fourth Proportional to 1,238,469.60, 1,857,704.40 and 528,520.80

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Solution

The fourth proportional to 1,238,469.60, 1,857,704.40 and 528,520.80 is: 792,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,469.60 : 1,857,704.40 = 528,520.80 : x
  2. Step 2: Convert to fraction form
    1,238,469.60/1,857,704.40 = 528,520.80/x
  3. Step 3: Cross multiply
    1,238,469.60x = 1,857,704.40 × 528,520.80
  4. Step 4: Simplify right side
    1,238,469.60x = 981,835,415,651.52
  5. Step 5: Solve for x
    x = 981,835,415,651.52/1,238,469.60
  6. Step 6: Final answer
    x = 792,781.20

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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.