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Finding the Fourth Proportional to 612,940.34, 919,674.90 and 233,974.89

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Solution

The fourth proportional to 612,940.34, 919,674.90 and 233,974.89 is: 351,063.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,940.34 : 919,674.90 = 233,974.89 : x
  2. Step 2: Convert to fraction form
    612,940.34/919,674.90 = 233,974.89/x
  3. Step 3: Cross multiply
    612,940.34x = 919,674.90 × 233,974.89
  4. Step 4: Simplify right side
    612,940.34x = 215,180,833,563.26
  5. Step 5: Solve for x
    x = 215,180,833,563.26/612,940.34
  6. Step 6: Final answer
    x = 351,063.26

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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.