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Finding the Fourth Proportional to 644,896.15, 967,346.47 and 195,620.89

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Solution

The fourth proportional to 644,896.15, 967,346.47 and 195,620.89 is: 293,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,896.15 : 967,346.47 = 195,620.89 : x
  2. Step 2: Convert to fraction form
    644,896.15/967,346.47 = 195,620.89/x
  3. Step 3: Cross multiply
    644,896.15x = 967,346.47 × 195,620.89
  4. Step 4: Simplify right side
    644,896.15x = 189,233,172,563.03
  5. Step 5: Solve for x
    x = 189,233,172,563.03/644,896.15
  6. Step 6: Final answer
    x = 293,432.01

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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.