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Finding the Fourth Proportional to 338,903.92, 468,174.06 and 270,831.64

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Solution

The fourth proportional to 338,903.92, 468,174.06 and 270,831.64 is: 374,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,903.92 : 468,174.06 = 270,831.64 : x
  2. Step 2: Convert to fraction form
    338,903.92/468,174.06 = 270,831.64/x
  3. Step 3: Cross multiply
    338,903.92x = 468,174.06 × 270,831.64
  4. Step 4: Simplify right side
    338,903.92x = 126,796,348,475.26
  5. Step 5: Solve for x
    x = 126,796,348,475.26/338,903.92
  6. Step 6: Final answer
    x = 374,136.56

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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.