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Finding the Fourth Proportional to 368,517.42, 508,299.57 and 225,347.94

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Solution

The fourth proportional to 368,517.42, 508,299.57 and 225,347.94 is: 310,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,517.42 : 508,299.57 = 225,347.94 : x
  2. Step 2: Convert to fraction form
    368,517.42/508,299.57 = 225,347.94/x
  3. Step 3: Cross multiply
    368,517.42x = 508,299.57 × 225,347.94
  4. Step 4: Simplify right side
    368,517.42x = 114,544,261,002.39
  5. Step 5: Solve for x
    x = 114,544,261,002.39/368,517.42
  6. Step 6: Final answer
    x = 310,824.55

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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.