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Finding the Fourth Proportional to 682,454.38, 941,784.39 and 376,549.80

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Solution

The fourth proportional to 682,454.38, 941,784.39 and 376,549.80 is: 519,637.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,454.38 : 941,784.39 = 376,549.80 : x
  2. Step 2: Convert to fraction form
    682,454.38/941,784.39 = 376,549.80/x
  3. Step 3: Cross multiply
    682,454.38x = 941,784.39 × 376,549.80
  4. Step 4: Simplify right side
    682,454.38x = 354,628,725,198.13
  5. Step 5: Solve for x
    x = 354,628,725,198.13/682,454.38
  6. Step 6: Final answer
    x = 519,637.27

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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.