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Finding the Fourth Proportional to 361,079.40, 541,619.10 and 303,342.60

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Solution

The fourth proportional to 361,079.40, 541,619.10 and 303,342.60 is: 455,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,079.40 : 541,619.10 = 303,342.60 : x
  2. Step 2: Convert to fraction form
    361,079.40/541,619.10 = 303,342.60/x
  3. Step 3: Cross multiply
    361,079.40x = 541,619.10 × 303,342.60
  4. Step 4: Simplify right side
    361,079.40x = 164,296,146,003.66
  5. Step 5: Solve for x
    x = 164,296,146,003.66/361,079.40
  6. Step 6: Final answer
    x = 455,013.90

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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.