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Finding the Fourth Proportional to 405,717.26, 608,631.24 and 169,004.58

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Solution

The fourth proportional to 405,717.26, 608,631.24 and 169,004.58 is: 253,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,717.26 : 608,631.24 = 169,004.58 : x
  2. Step 2: Convert to fraction form
    405,717.26/608,631.24 = 169,004.58/x
  3. Step 3: Cross multiply
    405,717.26x = 608,631.24 × 169,004.58
  4. Step 4: Simplify right side
    405,717.26x = 102,861,467,091.08
  5. Step 5: Solve for x
    x = 102,861,467,091.08/405,717.26
  6. Step 6: Final answer
    x = 253,529.93

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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.