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Finding the Fourth Proportional to 384,620.40, 576,930.60 and 185,330.03

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Solution

The fourth proportional to 384,620.40, 576,930.60 and 185,330.03 is: 277,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,620.40 : 576,930.60 = 185,330.03 : x
  2. Step 2: Convert to fraction form
    384,620.40/576,930.60 = 185,330.03/x
  3. Step 3: Cross multiply
    384,620.40x = 576,930.60 × 185,330.03
  4. Step 4: Simplify right side
    384,620.40x = 106,922,562,521.27
  5. Step 5: Solve for x
    x = 106,922,562,521.27/384,620.40
  6. Step 6: Final answer
    x = 277,995.04

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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.