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Finding the Fourth Proportional to 376,413.54, 519,451.56 and 206,658.60

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Solution

The fourth proportional to 376,413.54, 519,451.56 and 206,658.60 is: 285,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,413.54 : 519,451.56 = 206,658.60 : x
  2. Step 2: Convert to fraction form
    376,413.54/519,451.56 = 206,658.60/x
  3. Step 3: Cross multiply
    376,413.54x = 519,451.56 × 206,658.60
  4. Step 4: Simplify right side
    376,413.54x = 107,349,132,157.42
  5. Step 5: Solve for x
    x = 107,349,132,157.42/376,413.54
  6. Step 6: Final answer
    x = 285,189.35

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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.