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Finding the Fourth Proportional to 389,338.67, 537,292.45 and 226,033.33

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Solution

The fourth proportional to 389,338.67, 537,292.45 and 226,033.33 is: 311,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,338.67 : 537,292.45 = 226,033.33 : x
  2. Step 2: Convert to fraction form
    389,338.67/537,292.45 = 226,033.33/x
  3. Step 3: Cross multiply
    389,338.67x = 537,292.45 × 226,033.33
  4. Step 4: Simplify right side
    389,338.67x = 121,445,997,840.73
  5. Step 5: Solve for x
    x = 121,445,997,840.73/389,338.67
  6. Step 6: Final answer
    x = 311,928.94

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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.