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Finding the Fourth Proportional to 605,388.21, 907,958.44 and 226,238.95

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Solution

The fourth proportional to 605,388.21, 907,958.44 and 226,238.95 is: 339,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,388.21 : 907,958.44 = 226,238.95 : x
  2. Step 2: Convert to fraction form
    605,388.21/907,958.44 = 226,238.95/x
  3. Step 3: Cross multiply
    605,388.21x = 907,958.44 × 226,238.95
  4. Step 4: Simplify right side
    605,388.21x = 205,415,564,109.24
  5. Step 5: Solve for x
    x = 205,415,564,109.24/605,388.21
  6. Step 6: Final answer
    x = 339,312.13

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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.