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Finding the Fourth Proportional to 587,636.72, 881,704.13 and 321,085.84

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Solution

The fourth proportional to 587,636.72, 881,704.13 and 321,085.84 is: 481,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,636.72 : 881,704.13 = 321,085.84 : x
  2. Step 2: Convert to fraction form
    587,636.72/881,704.13 = 321,085.84/x
  3. Step 3: Cross multiply
    587,636.72x = 881,704.13 × 321,085.84
  4. Step 4: Simplify right side
    587,636.72x = 283,102,709,810.97
  5. Step 5: Solve for x
    x = 283,102,709,810.97/587,636.72
  6. Step 6: Final answer
    x = 481,764.84

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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.