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Finding the Fourth Proportional to 508,436.28, 762,183.48 and 188,409.96

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Solution

The fourth proportional to 508,436.28, 762,183.48 and 188,409.96 is: 282,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,436.28 : 762,183.48 = 188,409.96 : x
  2. Step 2: Convert to fraction form
    508,436.28/762,183.48 = 188,409.96/x
  3. Step 3: Cross multiply
    508,436.28x = 762,183.48 × 188,409.96
  4. Step 4: Simplify right side
    508,436.28x = 143,602,958,979.46
  5. Step 5: Solve for x
    x = 143,602,958,979.46/508,436.28
  6. Step 6: Final answer
    x = 282,440.42

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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.