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Finding the Fourth Proportional to 682,338.92, 941,637.49 and 395,945.60

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Solution

The fourth proportional to 682,338.92, 941,637.49 and 395,945.60 is: 546,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,338.92 : 941,637.49 = 395,945.60 : x
  2. Step 2: Convert to fraction form
    682,338.92/941,637.49 = 395,945.60/x
  3. Step 3: Cross multiply
    682,338.92x = 941,637.49 × 395,945.60
  4. Step 4: Simplify right side
    682,338.92x = 372,837,215,262.49
  5. Step 5: Solve for x
    x = 372,837,215,262.49/682,338.92
  6. Step 6: Final answer
    x = 546,410.60

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1.5x scale

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.