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Finding the Fourth Proportional to 612,889.32, 919,333.98 and 192,198

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Solution

The fourth proportional to 612,889.32, 919,333.98 and 192,198 is: 288,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,889.32 : 919,333.98 = 192,198 : x
  2. Step 2: Convert to fraction form
    612,889.32/919,333.98 = 192,198/x
  3. Step 3: Cross multiply
    612,889.32x = 919,333.98 × 192,198
  4. Step 4: Simplify right side
    612,889.32x = 176,694,152,288.04
  5. Step 5: Solve for x
    x = 176,694,152,288.04/612,889.32
  6. Step 6: Final answer
    x = 288,297.00

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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.