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Finding the Fourth Proportional to 682,236.55, 941,478.86 and 376,325.82

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Solution

The fourth proportional to 682,236.55, 941,478.86 and 376,325.82 is: 519,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,236.55 : 941,478.86 = 376,325.82 : x
  2. Step 2: Convert to fraction form
    682,236.55/941,478.86 = 376,325.82/x
  3. Step 3: Cross multiply
    682,236.55x = 941,478.86 × 376,325.82
  4. Step 4: Simplify right side
    682,236.55x = 354,302,797,413.14
  5. Step 5: Solve for x
    x = 354,302,797,413.14/682,236.55
  6. Step 6: Final answer
    x = 519,325.45

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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.