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Finding the Fourth Proportional to 492,213.94, 679,255.70 and 265,859.44

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Solution

The fourth proportional to 492,213.94, 679,255.70 and 265,859.44 is: 366,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,213.94 : 679,255.70 = 265,859.44 : x
  2. Step 2: Convert to fraction form
    492,213.94/679,255.70 = 265,859.44/x
  3. Step 3: Cross multiply
    492,213.94x = 679,255.70 × 265,859.44
  4. Step 4: Simplify right side
    492,213.94x = 180,586,536,991.37
  5. Step 5: Solve for x
    x = 180,586,536,991.37/492,213.94
  6. Step 6: Final answer
    x = 366,886.27

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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.