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Finding the Fourth Proportional to 431,940.48, 595,930.87 and 262,141.80

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Solution

The fourth proportional to 431,940.48, 595,930.87 and 262,141.80 is: 361,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,940.48 : 595,930.87 = 262,141.80 : x
  2. Step 2: Convert to fraction form
    431,940.48/595,930.87 = 262,141.80/x
  3. Step 3: Cross multiply
    431,940.48x = 595,930.87 × 262,141.80
  4. Step 4: Simplify right side
    431,940.48x = 156,218,390,937.37
  5. Step 5: Solve for x
    x = 156,218,390,937.37/431,940.48
  6. Step 6: Final answer
    x = 361,666.48

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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.