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Finding the Fourth Proportional to 368,469.60, 552,704.40 and 190,917.60

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Solution

The fourth proportional to 368,469.60, 552,704.40 and 190,917.60 is: 286,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,469.60 : 552,704.40 = 190,917.60 : x
  2. Step 2: Convert to fraction form
    368,469.60/552,704.40 = 190,917.60/x
  3. Step 3: Cross multiply
    368,469.60x = 552,704.40 × 190,917.60
  4. Step 4: Simplify right side
    368,469.60x = 105,520,997,557.44
  5. Step 5: Solve for x
    x = 105,520,997,557.44/368,469.60
  6. Step 6: Final answer
    x = 286,376.40

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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.