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Finding the Fourth Proportional to 376,413.28, 519,459.48 and 204,338.30

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Solution

The fourth proportional to 376,413.28, 519,459.48 and 204,338.30 is: 281,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,413.28 : 519,459.48 = 204,338.30 : x
  2. Step 2: Convert to fraction form
    376,413.28/519,459.48 = 204,338.30/x
  3. Step 3: Cross multiply
    376,413.28x = 519,459.48 × 204,338.30
  4. Step 4: Simplify right side
    376,413.28x = 106,145,464,464.79
  5. Step 5: Solve for x
    x = 106,145,464,464.79/376,413.28
  6. Step 6: Final answer
    x = 281,991.82

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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.