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Finding the Fourth Proportional to 682,597.46, 942,171.86 and 396,209.82

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Solution

The fourth proportional to 682,597.46, 942,171.86 and 396,209.82 is: 546,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,597.46 : 942,171.86 = 396,209.82 : x
  2. Step 2: Convert to fraction form
    682,597.46/942,171.86 = 396,209.82/x
  3. Step 3: Cross multiply
    682,597.46x = 942,171.86 × 396,209.82
  4. Step 4: Simplify right side
    682,597.46x = 373,297,743,059.67
  5. Step 5: Solve for x
    x = 373,297,743,059.67/682,597.46
  6. Step 6: Final answer
    x = 546,878.31

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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.