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Finding the Fourth Proportional to 644,870.70, 967,304.91 and 171,556.06

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Solution

The fourth proportional to 644,870.70, 967,304.91 and 171,556.06 is: 257,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,870.70 : 967,304.91 = 171,556.06 : x
  2. Step 2: Convert to fraction form
    644,870.70/967,304.91 = 171,556.06/x
  3. Step 3: Cross multiply
    644,870.70x = 967,304.91 × 171,556.06
  4. Step 4: Simplify right side
    644,870.70x = 165,947,019,178.26
  5. Step 5: Solve for x
    x = 165,947,019,178.26/644,870.70
  6. Step 6: Final answer
    x = 257,333.79

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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.