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Finding the Fourth Proportional to 368,003.60, 552,005.40 and 341,431.55

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Solution

The fourth proportional to 368,003.60, 552,005.40 and 341,431.55 is: 512,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,003.60 : 552,005.40 = 341,431.55 : x
  2. Step 2: Convert to fraction form
    368,003.60/552,005.40 = 341,431.55/x
  3. Step 3: Cross multiply
    368,003.60x = 552,005.40 × 341,431.55
  4. Step 4: Simplify right side
    368,003.60x = 188,472,059,330.37
  5. Step 5: Solve for x
    x = 188,472,059,330.37/368,003.60
  6. Step 6: Final answer
    x = 512,147.33

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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.