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Finding the Fourth Proportional to 405,731.03, 608,651.93 and 169,018.34

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Solution

The fourth proportional to 405,731.03, 608,651.93 and 169,018.34 is: 253,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,731.03 : 608,651.93 = 169,018.34 : x
  2. Step 2: Convert to fraction form
    405,731.03/608,651.93 = 169,018.34/x
  3. Step 3: Cross multiply
    405,731.03x = 608,651.93 × 169,018.34
  4. Step 4: Simplify right side
    405,731.03x = 102,873,338,846.40
  5. Step 5: Solve for x
    x = 102,873,338,846.40/405,731.03
  6. Step 6: Final answer
    x = 253,550.58

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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.