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Finding the Fourth Proportional to 378,442.53, 522,224.00 and 208,673.01

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Solution

The fourth proportional to 378,442.53, 522,224.00 and 208,673.01 is: 287,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,442.53 : 522,224.00 = 208,673.01 : x
  2. Step 2: Convert to fraction form
    378,442.53/522,224.00 = 208,673.01/x
  3. Step 3: Cross multiply
    378,442.53x = 522,224.00 × 208,673.01
  4. Step 4: Simplify right side
    378,442.53x = 108,974,052,930.88
  5. Step 5: Solve for x
    x = 108,974,052,930.88/378,442.53
  6. Step 6: Final answer
    x = 287,954.03

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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.