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Finding the Fourth Proportional to 682,414.64, 941,427.68 and 395,768.72

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Solution

The fourth proportional to 682,414.64, 941,427.68 and 395,768.72 is: 545,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,414.64 : 941,427.68 = 395,768.72 : x
  2. Step 2: Convert to fraction form
    682,414.64/941,427.68 = 395,768.72/x
  3. Step 3: Cross multiply
    682,414.64x = 941,427.68 × 395,768.72
  4. Step 4: Simplify right side
    682,414.64x = 372,587,627,886.17
  5. Step 5: Solve for x
    x = 372,587,627,886.17/682,414.64
  6. Step 6: Final answer
    x = 545,984.22

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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.