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Finding the Fourth Proportional to 573,554.20, 860,446.14 and 321,193.58

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Solution

The fourth proportional to 573,554.20, 860,446.14 and 321,193.58 is: 481,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,554.20 : 860,446.14 = 321,193.58 : x
  2. Step 2: Convert to fraction form
    573,554.20/860,446.14 = 321,193.58/x
  3. Step 3: Cross multiply
    573,554.20x = 860,446.14 × 321,193.58
  4. Step 4: Simplify right side
    573,554.20x = 276,369,776,103.78
  5. Step 5: Solve for x
    x = 276,369,776,103.78/573,554.20
  6. Step 6: Final answer
    x = 481,854.68

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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.