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Finding the Fourth Proportional to 483,258.99, 724,610.66 and 199,145.64

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Solution

The fourth proportional to 483,258.99, 724,610.66 and 199,145.64 is: 298,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,258.99 : 724,610.66 = 199,145.64 : x
  2. Step 2: Convert to fraction form
    483,258.99/724,610.66 = 199,145.64/x
  3. Step 3: Cross multiply
    483,258.99x = 724,610.66 × 199,145.64
  4. Step 4: Simplify right side
    483,258.99x = 144,303,052,640.79
  5. Step 5: Solve for x
    x = 144,303,052,640.79/483,258.99
  6. Step 6: Final answer
    x = 298,603.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.