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Finding the Fourth Proportional to 593,107.54, 818,486.91 and 321,175.42

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Solution

The fourth proportional to 593,107.54, 818,486.91 and 321,175.42 is: 443,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,107.54 : 818,486.91 = 321,175.42 : x
  2. Step 2: Convert to fraction form
    593,107.54/818,486.91 = 321,175.42/x
  3. Step 3: Cross multiply
    593,107.54x = 818,486.91 × 321,175.42
  4. Step 4: Simplify right side
    593,107.54x = 262,877,877,083.75
  5. Step 5: Solve for x
    x = 262,877,877,083.75/593,107.54
  6. Step 6: Final answer
    x = 443,221.27

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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.