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Finding the Fourth Proportional to 405,906.29, 606,370.46 and 292,619.69

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Solution

The fourth proportional to 405,906.29, 606,370.46 and 292,619.69 is: 437,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,906.29 : 606,370.46 = 292,619.69 : x
  2. Step 2: Convert to fraction form
    405,906.29/606,370.46 = 292,619.69/x
  3. Step 3: Cross multiply
    405,906.29x = 606,370.46 × 292,619.69
  4. Step 4: Simplify right side
    405,906.29x = 177,435,932,632.73
  5. Step 5: Solve for x
    x = 177,435,932,632.73/405,906.29
  6. Step 6: Final answer
    x = 437,135.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.