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Finding the Fourth Proportional to 682,274.57, 941,620.21 and 395,804.30

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Solution

The fourth proportional to 682,274.57, 941,620.21 and 395,804.30 is: 546,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,274.57 : 941,620.21 = 395,804.30 : x
  2. Step 2: Convert to fraction form
    682,274.57/941,620.21 = 395,804.30/x
  3. Step 3: Cross multiply
    682,274.57x = 941,620.21 × 395,804.30
  4. Step 4: Simplify right side
    682,274.57x = 372,697,322,387.29
  5. Step 5: Solve for x
    x = 372,697,322,387.29/682,274.57
  6. Step 6: Final answer
    x = 546,257.10

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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.