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Finding the Fourth Proportional to 405,612.46, 559,815.43 and 244,467.69

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Solution

The fourth proportional to 405,612.46, 559,815.43 and 244,467.69 is: 337,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,612.46 : 559,815.43 = 244,467.69 : x
  2. Step 2: Convert to fraction form
    405,612.46/559,815.43 = 244,467.69/x
  3. Step 3: Cross multiply
    405,612.46x = 559,815.43 × 244,467.69
  4. Step 4: Simplify right side
    405,612.46x = 136,856,784,387.29
  5. Step 5: Solve for x
    x = 136,856,784,387.29/405,612.46
  6. Step 6: Final answer
    x = 337,407.74

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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.