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Finding the Fourth Proportional to 264,628.40, 396,942.60 and 185,831.60

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Solution

The fourth proportional to 264,628.40, 396,942.60 and 185,831.60 is: 278,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,628.40 : 396,942.60 = 185,831.60 : x
  2. Step 2: Convert to fraction form
    264,628.40/396,942.60 = 185,831.60/x
  3. Step 3: Cross multiply
    264,628.40x = 396,942.60 × 185,831.60
  4. Step 4: Simplify right side
    264,628.40x = 73,764,478,466.16
  5. Step 5: Solve for x
    x = 73,764,478,466.16/264,628.40
  6. Step 6: Final answer
    x = 278,747.40

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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.