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Finding the Fourth Proportional to 534,012.44, 736,930.92 and 288,991.52

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Solution

The fourth proportional to 534,012.44, 736,930.92 and 288,991.52 is: 398,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,012.44 : 736,930.92 = 288,991.52 : x
  2. Step 2: Convert to fraction form
    534,012.44/736,930.92 = 288,991.52/x
  3. Step 3: Cross multiply
    534,012.44x = 736,930.92 × 288,991.52
  4. Step 4: Simplify right side
    534,012.44x = 212,966,783,021.14
  5. Step 5: Solve for x
    x = 212,966,783,021.14/534,012.44
  6. Step 6: Final answer
    x = 398,804.91

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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.