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Finding the Fourth Proportional to 371,646.73, 512,826.76 and 226,399.82

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Solution

The fourth proportional to 371,646.73, 512,826.76 and 226,399.82 is: 312,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,646.73 : 512,826.76 = 226,399.82 : x
  2. Step 2: Convert to fraction form
    371,646.73/512,826.76 = 226,399.82/x
  3. Step 3: Cross multiply
    371,646.73x = 512,826.76 × 226,399.82
  4. Step 4: Simplify right side
    371,646.73x = 116,103,883,874.05
  5. Step 5: Solve for x
    x = 116,103,883,874.05/371,646.73
  6. Step 6: Final answer
    x = 312,403.89

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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.