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Finding the Fourth Proportional to 655,845.62, 983,674.94 and 206,554.77

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Solution

The fourth proportional to 655,845.62, 983,674.94 and 206,554.77 is: 309,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,845.62 : 983,674.94 = 206,554.77 : x
  2. Step 2: Convert to fraction form
    655,845.62/983,674.94 = 206,554.77/x
  3. Step 3: Cross multiply
    655,845.62x = 983,674.94 × 206,554.77
  4. Step 4: Simplify right side
    655,845.62x = 203,182,749,953.69
  5. Step 5: Solve for x
    x = 203,182,749,953.69/655,845.62
  6. Step 6: Final answer
    x = 309,802.71

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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.