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Finding the Fourth Proportional to 579,768.39, 869,712.11 and 200,688.52

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Solution

The fourth proportional to 579,768.39, 869,712.11 and 200,688.52 is: 301,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,768.39 : 869,712.11 = 200,688.52 : x
  2. Step 2: Convert to fraction form
    579,768.39/869,712.11 = 200,688.52/x
  3. Step 3: Cross multiply
    579,768.39x = 869,712.11 × 200,688.52
  4. Step 4: Simplify right side
    579,768.39x = 174,541,236,181.98
  5. Step 5: Solve for x
    x = 174,541,236,181.98/579,768.39
  6. Step 6: Final answer
    x = 301,053.38

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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.