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Finding the Fourth Proportional to 616,991.65, 925,429.15 and 196,193.41

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Solution

The fourth proportional to 616,991.65, 925,429.15 and 196,193.41 is: 294,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,991.65 : 925,429.15 = 196,193.41 : x
  2. Step 2: Convert to fraction form
    616,991.65/925,429.15 = 196,193.41/x
  3. Step 3: Cross multiply
    616,991.65x = 925,429.15 × 196,193.41
  4. Step 4: Simplify right side
    616,991.65x = 181,563,098,583.57
  5. Step 5: Solve for x
    x = 181,563,098,583.57/616,991.65
  6. Step 6: Final answer
    x = 294,271.57

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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.