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Finding the Fourth Proportional to 404,362.75, 606,440.29 and 119,986.06

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Solution

The fourth proportional to 404,362.75, 606,440.29 and 119,986.06 is: 179,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,362.75 : 606,440.29 = 119,986.06 : x
  2. Step 2: Convert to fraction form
    404,362.75/606,440.29 = 119,986.06/x
  3. Step 3: Cross multiply
    404,362.75x = 606,440.29 × 119,986.06
  4. Step 4: Simplify right side
    404,362.75x = 72,764,381,022.36
  5. Step 5: Solve for x
    x = 72,764,381,022.36/404,362.75
  6. Step 6: Final answer
    x = 179,948.28

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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.