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Finding the Fourth Proportional to 425,194.04, 637,791.86 and 399,212.48

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Solution

The fourth proportional to 425,194.04, 637,791.86 and 399,212.48 is: 598,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,194.04 : 637,791.86 = 399,212.48 : x
  2. Step 2: Convert to fraction form
    425,194.04/637,791.86 = 399,212.48/x
  3. Step 3: Cross multiply
    425,194.04x = 637,791.86 × 399,212.48
  4. Step 4: Simplify right side
    425,194.04x = 254,614,470,154.41
  5. Step 5: Solve for x
    x = 254,614,470,154.41/425,194.04
  6. Step 6: Final answer
    x = 598,819.47

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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.