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Finding the Fourth Proportional to 436,155.40, 654,233.10 and 404,662.60

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Solution

The fourth proportional to 436,155.40, 654,233.10 and 404,662.60 is: 606,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,155.40 : 654,233.10 = 404,662.60 : x
  2. Step 2: Convert to fraction form
    436,155.40/654,233.10 = 404,662.60/x
  3. Step 3: Cross multiply
    436,155.40x = 654,233.10 × 404,662.60
  4. Step 4: Simplify right side
    436,155.40x = 264,743,667,252.06
  5. Step 5: Solve for x
    x = 264,743,667,252.06/436,155.40
  6. Step 6: Final answer
    x = 606,993.90

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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.