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Finding the Fourth Proportional to 682,483, 941,879.64 and 376,619.80

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Solution

The fourth proportional to 682,483, 941,879.64 and 376,619.80 is: 519,764.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,483 : 941,879.64 = 376,619.80 : x
  2. Step 2: Convert to fraction form
    682,483/941,879.64 = 376,619.80/x
  3. Step 3: Cross multiply
    682,483x = 941,879.64 × 376,619.80
  4. Step 4: Simplify right side
    682,483x = 354,730,521,640.87
  5. Step 5: Solve for x
    x = 354,730,521,640.87/682,483
  6. Step 6: Final answer
    x = 519,764.63

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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.