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Finding the Fourth Proportional to 377,653.99, 521,169.14 and 205,576.90

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Solution

The fourth proportional to 377,653.99, 521,169.14 and 205,576.90 is: 283,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,653.99 : 521,169.14 = 205,576.90 : x
  2. Step 2: Convert to fraction form
    377,653.99/521,169.14 = 205,576.90/x
  3. Step 3: Cross multiply
    377,653.99x = 521,169.14 × 205,576.90
  4. Step 4: Simplify right side
    377,653.99x = 107,140,336,176.87
  5. Step 5: Solve for x
    x = 107,140,336,176.87/377,653.99
  6. Step 6: Final answer
    x = 283,699.73

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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.