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Finding the Fourth Proportional to 404,578.24, 606,679.56 and 236,147.20

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Solution

The fourth proportional to 404,578.24, 606,679.56 and 236,147.20 is: 354,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,578.24 : 606,679.56 = 236,147.20 : x
  2. Step 2: Convert to fraction form
    404,578.24/606,679.56 = 236,147.20/x
  3. Step 3: Cross multiply
    404,578.24x = 606,679.56 × 236,147.20
  4. Step 4: Simplify right side
    404,578.24x = 143,265,679,391.23
  5. Step 5: Solve for x
    x = 143,265,679,391.23/404,578.24
  6. Step 6: Final answer
    x = 354,111.18

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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.