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Finding the Fourth Proportional to 655,695.99, 982,960.49 and 256,245.93

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Solution

The fourth proportional to 655,695.99, 982,960.49 and 256,245.93 is: 384,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,695.99 : 982,960.49 = 256,245.93 : x
  2. Step 2: Convert to fraction form
    655,695.99/982,960.49 = 256,245.93/x
  3. Step 3: Cross multiply
    655,695.99x = 982,960.49 × 256,245.93
  4. Step 4: Simplify right side
    655,695.99x = 251,879,625,553.92
  5. Step 5: Solve for x
    x = 251,879,625,553.92/655,695.99
  6. Step 6: Final answer
    x = 384,140.87

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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.