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Finding the Fourth Proportional to 483,413.12, 667,171.61 and 292,427.87

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Solution

The fourth proportional to 483,413.12, 667,171.61 and 292,427.87 is: 403,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,413.12 : 667,171.61 = 292,427.87 : x
  2. Step 2: Convert to fraction form
    483,413.12/667,171.61 = 292,427.87/x
  3. Step 3: Cross multiply
    483,413.12x = 667,171.61 × 292,427.87
  4. Step 4: Simplify right side
    483,413.12x = 195,099,572,836.77
  5. Step 5: Solve for x
    x = 195,099,572,836.77/483,413.12
  6. Step 6: Final answer
    x = 403,587.67

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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.