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Finding the Fourth Proportional to 2,361,328, 3,541,992 and 785,392

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Solution

The fourth proportional to 2,361,328, 3,541,992 and 785,392 is: 1,178,088

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361,328 : 3,541,992 = 785,392 : x
  2. Step 2: Convert to fraction form
    2,361,328/3,541,992 = 785,392/x
  3. Step 3: Cross multiply
    2,361,328x = 3,541,992 × 785,392
  4. Step 4: Simplify right side
    2,361,328x = 2,781,852,180,864
  5. Step 5: Solve for x
    x = 2,781,852,180,864/2,361,328
  6. Step 6: Final answer
    x = 1,178,088

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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.