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Finding the Fourth Proportional to 443,536.92, 612,081.21 and 239,587.86

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Solution

The fourth proportional to 443,536.92, 612,081.21 and 239,587.86 is: 330,631.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,536.92 : 612,081.21 = 239,587.86 : x
  2. Step 2: Convert to fraction form
    443,536.92/612,081.21 = 239,587.86/x
  3. Step 3: Cross multiply
    443,536.92x = 612,081.21 × 239,587.86
  4. Step 4: Simplify right side
    443,536.92x = 146,647,227,250.11
  5. Step 5: Solve for x
    x = 146,647,227,250.11/443,536.92
  6. Step 6: Final answer
    x = 330,631.39

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1.5x scale

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.