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Finding the Fourth Proportional to 682,383.50, 941,384.94 and 395,737.46

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Solution

The fourth proportional to 682,383.50, 941,384.94 and 395,737.46 is: 545,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,383.50 : 941,384.94 = 395,737.46 : x
  2. Step 2: Convert to fraction form
    682,383.50/941,384.94 = 395,737.46/x
  3. Step 3: Cross multiply
    682,383.50x = 941,384.94 × 395,737.46
  4. Step 4: Simplify right side
    682,383.50x = 372,541,285,037.85
  5. Step 5: Solve for x
    x = 372,541,285,037.85/682,383.50
  6. Step 6: Final answer
    x = 545,941.23

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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.