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Finding the Fourth Proportional to 264,046.20, 395,413.20 and 211,558.20

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Solution

The fourth proportional to 264,046.20, 395,413.20 and 211,558.20 is: 316,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,046.20 : 395,413.20 = 211,558.20 : x
  2. Step 2: Convert to fraction form
    264,046.20/395,413.20 = 211,558.20/x
  3. Step 3: Cross multiply
    264,046.20x = 395,413.20 × 211,558.20
  4. Step 4: Simplify right side
    264,046.20x = 83,652,904,848.24
  5. Step 5: Solve for x
    x = 83,652,904,848.24/264,046.20
  6. Step 6: Final answer
    x = 316,811.62

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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.