Home / 1,188,661.86-1,640,353.23-672,404.69

Finding the Fourth Proportional to 1,188,661.86, 1,640,353.23 and 672,404.69

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Solution

The fourth proportional to 1,188,661.86, 1,640,353.23 and 672,404.69 is: 927,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,661.86 : 1,640,353.23 = 672,404.69 : x
  2. Step 2: Convert to fraction form
    1,188,661.86/1,640,353.23 = 672,404.69/x
  3. Step 3: Cross multiply
    1,188,661.86x = 1,640,353.23 × 672,404.69
  4. Step 4: Simplify right side
    1,188,661.86x = 1,102,981,197,645.74
  5. Step 5: Solve for x
    x = 1,102,981,197,645.74/1,188,661.86
  6. Step 6: Final answer
    x = 927,918.39

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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.