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Finding the Fourth Proportional to 443,536.36, 612,080.44 and 239,587.30

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Solution

The fourth proportional to 443,536.36, 612,080.44 and 239,587.30 is: 330,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,536.36 : 612,080.44 = 239,587.30 : x
  2. Step 2: Convert to fraction form
    443,536.36/612,080.44 = 239,587.30/x
  3. Step 3: Cross multiply
    443,536.36x = 612,080.44 × 239,587.30
  4. Step 4: Simplify right side
    443,536.36x = 146,646,700,002.41
  5. Step 5: Solve for x
    x = 146,646,700,002.41/443,536.36
  6. Step 6: Final answer
    x = 330,630.62

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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.