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Finding the Fourth Proportional to 404,837.20, 606,964.20 and 227,398.60

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Solution

The fourth proportional to 404,837.20, 606,964.20 and 227,398.60 is: 340,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,837.20 : 606,964.20 = 227,398.60 : x
  2. Step 2: Convert to fraction form
    404,837.20/606,964.20 = 227,398.60/x
  3. Step 3: Cross multiply
    404,837.20x = 606,964.20 × 227,398.60
  4. Step 4: Simplify right side
    404,837.20x = 138,022,809,330.12
  5. Step 5: Solve for x
    x = 138,022,809,330.12/404,837.20
  6. Step 6: Final answer
    x = 340,934.11

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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.