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Finding the Fourth Proportional to 368,000.80, 552,001.20 and 327,911.20

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Solution

The fourth proportional to 368,000.80, 552,001.20 and 327,911.20 is: 491,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,000.80 : 552,001.20 = 327,911.20 : x
  2. Step 2: Convert to fraction form
    368,000.80/552,001.20 = 327,911.20/x
  3. Step 3: Cross multiply
    368,000.80x = 552,001.20 × 327,911.20
  4. Step 4: Simplify right side
    368,000.80x = 181,007,375,893.44
  5. Step 5: Solve for x
    x = 181,007,375,893.44/368,000.80
  6. Step 6: Final answer
    x = 491,866.80

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1.5x scale

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.