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Finding the Fourth Proportional to 442,561.45, 610,629.82 and 251,559.81

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Solution

The fourth proportional to 442,561.45, 610,629.82 and 251,559.81 is: 347,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,561.45 : 610,629.82 = 251,559.81 : x
  2. Step 2: Convert to fraction form
    442,561.45/610,629.82 = 251,559.81/x
  3. Step 3: Cross multiply
    442,561.45x = 610,629.82 × 251,559.81
  4. Step 4: Simplify right side
    442,561.45x = 153,609,921,499.53
  5. Step 5: Solve for x
    x = 153,609,921,499.53/442,561.45
  6. Step 6: Final answer
    x = 347,092.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.