Home / 411,831.27-618,146.37-198,749.16

Finding the Fourth Proportional to 411,831.27, 618,146.37 and 198,749.16

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Solution

The fourth proportional to 411,831.27, 618,146.37 and 198,749.16 is: 298,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,831.27 : 618,146.37 = 198,749.16 : x
  2. Step 2: Convert to fraction form
    411,831.27/618,146.37 = 198,749.16/x
  3. Step 3: Cross multiply
    411,831.27x = 618,146.37 × 198,749.16
  4. Step 4: Simplify right side
    411,831.27x = 122,856,071,794.55
  5. Step 5: Solve for x
    x = 122,856,071,794.55/411,831.27
  6. Step 6: Final answer
    x = 298,316.52

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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.