Home / 646,694.75-892,426.48-405,110.57

Finding the Fourth Proportional to 646,694.75, 892,426.48 and 405,110.57

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Solution

The fourth proportional to 646,694.75, 892,426.48 and 405,110.57 is: 559,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,694.75 : 892,426.48 = 405,110.57 : x
  2. Step 2: Convert to fraction form
    646,694.75/892,426.48 = 405,110.57/x
  3. Step 3: Cross multiply
    646,694.75x = 892,426.48 × 405,110.57
  4. Step 4: Simplify right side
    646,694.75x = 361,531,394,520.99
  5. Step 5: Solve for x
    x = 361,531,394,520.99/646,694.75
  6. Step 6: Final answer
    x = 559,044.89

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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.