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Finding the Fourth Proportional to 258,201.54, 356,218.83 and 190,379.70

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Solution

The fourth proportional to 258,201.54, 356,218.83 and 190,379.70 is: 262,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,201.54 : 356,218.83 = 190,379.70 : x
  2. Step 2: Convert to fraction form
    258,201.54/356,218.83 = 190,379.70/x
  3. Step 3: Cross multiply
    258,201.54x = 356,218.83 × 190,379.70
  4. Step 4: Simplify right side
    258,201.54x = 67,816,833,989.75
  5. Step 5: Solve for x
    x = 67,816,833,989.75/258,201.54
  6. Step 6: Final answer
    x = 262,650.77

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1.5x scale

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.