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Finding the Fourth Proportional to 388,536.41, 582,656.99 and 185,924.54

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Solution

The fourth proportional to 388,536.41, 582,656.99 and 185,924.54 is: 278,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,536.41 : 582,656.99 = 185,924.54 : x
  2. Step 2: Convert to fraction form
    388,536.41/582,656.99 = 185,924.54/x
  3. Step 3: Cross multiply
    388,536.41x = 582,656.99 × 185,924.54
  4. Step 4: Simplify right side
    388,536.41x = 108,330,229,000.63
  5. Step 5: Solve for x
    x = 108,330,229,000.63/388,536.41
  6. Step 6: Final answer
    x = 278,816.16

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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.