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Finding the Fourth Proportional to 579,767.63, 869,710.99 and 200,687.77

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Solution

The fourth proportional to 579,767.63, 869,710.99 and 200,687.77 is: 301,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,767.63 : 869,710.99 = 200,687.77 : x
  2. Step 2: Convert to fraction form
    579,767.63/869,710.99 = 200,687.77/x
  3. Step 3: Cross multiply
    579,767.63x = 869,710.99 × 200,687.77
  4. Step 4: Simplify right side
    579,767.63x = 174,540,355,949.88
  5. Step 5: Solve for x
    x = 174,540,355,949.88/579,767.63
  6. Step 6: Final answer
    x = 301,052.26

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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.