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Finding the Fourth Proportional to 343,044.60, 515,137.14 and 231,442.80

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Solution

The fourth proportional to 343,044.60, 515,137.14 and 231,442.80 is: 347,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,044.60 : 515,137.14 = 231,442.80 : x
  2. Step 2: Convert to fraction form
    343,044.60/515,137.14 = 231,442.80/x
  3. Step 3: Cross multiply
    343,044.60x = 515,137.14 × 231,442.80
  4. Step 4: Simplify right side
    343,044.60x = 119,224,782,065.59
  5. Step 5: Solve for x
    x = 119,224,782,065.59/343,044.60
  6. Step 6: Final answer
    x = 347,548.93

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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.