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Finding the Fourth Proportional to 404,073.40, 606,282.90 and 254,428.60

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Solution

The fourth proportional to 404,073.40, 606,282.90 and 254,428.60 is: 381,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,073.40 : 606,282.90 = 254,428.60 : x
  2. Step 2: Convert to fraction form
    404,073.40/606,282.90 = 254,428.60/x
  3. Step 3: Cross multiply
    404,073.40x = 606,282.90 × 254,428.60
  4. Step 4: Simplify right side
    404,073.40x = 154,255,709,450.94
  5. Step 5: Solve for x
    x = 154,255,709,450.94/404,073.40
  6. Step 6: Final answer
    x = 381,751.71

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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.