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Finding the Fourth Proportional to 388,696.32, 582,616.80 and 151,994.88

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Solution

The fourth proportional to 388,696.32, 582,616.80 and 151,994.88 is: 227,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,696.32 : 582,616.80 = 151,994.88 : x
  2. Step 2: Convert to fraction form
    388,696.32/582,616.80 = 151,994.88/x
  3. Step 3: Cross multiply
    388,696.32x = 582,616.80 × 151,994.88
  4. Step 4: Simplify right side
    388,696.32x = 88,554,770,601.98
  5. Step 5: Solve for x
    x = 88,554,770,601.98/388,696.32
  6. Step 6: Final answer
    x = 227,825.08

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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.