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Finding the Fourth Proportional to 404,458.20, 606,395.70 and 227,019.60

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Solution

The fourth proportional to 404,458.20, 606,395.70 and 227,019.60 is: 340,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,458.20 : 606,395.70 = 227,019.60 : x
  2. Step 2: Convert to fraction form
    404,458.20/606,395.70 = 227,019.60/x
  3. Step 3: Cross multiply
    404,458.20x = 606,395.70 × 227,019.60
  4. Step 4: Simplify right side
    404,458.20x = 137,663,709,255.72
  5. Step 5: Solve for x
    x = 137,663,709,255.72/404,458.20
  6. Step 6: Final answer
    x = 340,365.73

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1.5x scale

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.