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Finding the Fourth Proportional to 447,589.44, 671,379.84 and 210,802.56

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Solution

The fourth proportional to 447,589.44, 671,379.84 and 210,802.56 is: 316,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,589.44 : 671,379.84 = 210,802.56 : x
  2. Step 2: Convert to fraction form
    447,589.44/671,379.84 = 210,802.56/x
  3. Step 3: Cross multiply
    447,589.44x = 671,379.84 × 210,802.56
  4. Step 4: Simplify right side
    447,589.44x = 141,528,589,004.39
  5. Step 5: Solve for x
    x = 141,528,589,004.39/447,589.44
  6. Step 6: Final answer
    x = 316,201.81

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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.