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Finding the Fourth Proportional to 593,611.16, 819,181.50 and 321,680.12

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Solution

The fourth proportional to 593,611.16, 819,181.50 and 321,680.12 is: 443,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,611.16 : 819,181.50 = 321,680.12 : x
  2. Step 2: Convert to fraction form
    593,611.16/819,181.50 = 321,680.12/x
  3. Step 3: Cross multiply
    593,611.16x = 819,181.50 × 321,680.12
  4. Step 4: Simplify right side
    593,611.16x = 263,514,403,221.78
  5. Step 5: Solve for x
    x = 263,514,403,221.78/593,611.16
  6. Step 6: Final answer
    x = 443,917.54

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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.