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Finding the Fourth Proportional to 362,476.81, 543,939.74 and 210,745.30

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Solution

The fourth proportional to 362,476.81, 543,939.74 and 210,745.30 is: 316,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,476.81 : 543,939.74 = 210,745.30 : x
  2. Step 2: Convert to fraction form
    362,476.81/543,939.74 = 210,745.30/x
  3. Step 3: Cross multiply
    362,476.81x = 543,939.74 × 210,745.30
  4. Step 4: Simplify right side
    362,476.81x = 114,632,743,688.22
  5. Step 5: Solve for x
    x = 114,632,743,688.22/362,476.81
  6. Step 6: Final answer
    x = 316,248.49

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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.