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Finding the Fourth Proportional to 674,067.36, 930,213.36 and 368,148

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Solution

The fourth proportional to 674,067.36, 930,213.36 and 368,148 is: 508,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,067.36 : 930,213.36 = 368,148 : x
  2. Step 2: Convert to fraction form
    674,067.36/930,213.36 = 368,148/x
  3. Step 3: Cross multiply
    674,067.36x = 930,213.36 × 368,148
  4. Step 4: Simplify right side
    674,067.36x = 342,456,188,057.28
  5. Step 5: Solve for x
    x = 342,456,188,057.28/674,067.36
  6. Step 6: Final answer
    x = 508,044.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.