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Finding the Fourth Proportional to 361,364.38, 498,666.04 and 198,019.92

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Solution

The fourth proportional to 361,364.38, 498,666.04 and 198,019.92 is: 273,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,364.38 : 498,666.04 = 198,019.92 : x
  2. Step 2: Convert to fraction form
    361,364.38/498,666.04 = 198,019.92/x
  3. Step 3: Cross multiply
    361,364.38x = 498,666.04 × 198,019.92
  4. Step 4: Simplify right side
    361,364.38x = 98,745,809,347.52
  5. Step 5: Solve for x
    x = 98,745,809,347.52/361,364.38
  6. Step 6: Final answer
    x = 273,258.28

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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.