Home / 411,831.65-618,146.94-198,749.52

Finding the Fourth Proportional to 411,831.65, 618,146.94 and 198,749.52

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Solution

The fourth proportional to 411,831.65, 618,146.94 and 198,749.52 is: 298,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,831.65 : 618,146.94 = 198,749.52 : x
  2. Step 2: Convert to fraction form
    411,831.65/618,146.94 = 198,749.52/x
  3. Step 3: Cross multiply
    411,831.65x = 618,146.94 × 198,749.52
  4. Step 4: Simplify right side
    411,831.65x = 122,856,403,529.99
  5. Step 5: Solve for x
    x = 122,856,403,529.99/411,831.65
  6. Step 6: Final answer
    x = 298,317.06

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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.