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Finding the Fourth Proportional to 608,908.32, 913,449.96 and 188,217

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Solution

The fourth proportional to 608,908.32, 913,449.96 and 188,217 is: 282,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,908.32 : 913,449.96 = 188,217 : x
  2. Step 2: Convert to fraction form
    608,908.32/913,449.96 = 188,217/x
  3. Step 3: Cross multiply
    608,908.32x = 913,449.96 × 188,217
  4. Step 4: Simplify right side
    608,908.32x = 171,926,811,121.32
  5. Step 5: Solve for x
    x = 171,926,811,121.32/608,908.32
  6. Step 6: Final answer
    x = 282,352.54

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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.