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Finding the Fourth Proportional to 368,438.45, 508,441.45 and 205,092.36

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Solution

The fourth proportional to 368,438.45, 508,441.45 and 205,092.36 is: 283,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,438.45 : 508,441.45 = 205,092.36 : x
  2. Step 2: Convert to fraction form
    368,438.45/508,441.45 = 205,092.36/x
  3. Step 3: Cross multiply
    368,438.45x = 508,441.45 × 205,092.36
  4. Step 4: Simplify right side
    368,438.45x = 104,277,456,902.32
  5. Step 5: Solve for x
    x = 104,277,456,902.32/368,438.45
  6. Step 6: Final answer
    x = 283,025.45

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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.