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Finding the Fourth Proportional to 343,755.77, 474,379.36 and 190,795.28

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Solution

The fourth proportional to 343,755.77, 474,379.36 and 190,795.28 is: 263,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,755.77 : 474,379.36 = 190,795.28 : x
  2. Step 2: Convert to fraction form
    343,755.77/474,379.36 = 190,795.28/x
  3. Step 3: Cross multiply
    343,755.77x = 474,379.36 × 190,795.28
  4. Step 4: Simplify right side
    343,755.77x = 90,509,339,968.54
  5. Step 5: Solve for x
    x = 90,509,339,968.54/343,755.77
  6. Step 6: Final answer
    x = 263,295.48

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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.