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Finding the Fourth Proportional to 404,858.20, 606,995.70 and 227,419.60

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Solution

The fourth proportional to 404,858.20, 606,995.70 and 227,419.60 is: 340,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,858.20 : 606,995.70 = 227,419.60 : x
  2. Step 2: Convert to fraction form
    404,858.20/606,995.70 = 227,419.60/x
  3. Step 3: Cross multiply
    404,858.20x = 606,995.70 × 227,419.60
  4. Step 4: Simplify right side
    404,858.20x = 138,042,719,295.72
  5. Step 5: Solve for x
    x = 138,042,719,295.72/404,858.20
  6. Step 6: Final answer
    x = 340,965.60

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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.