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Finding the Fourth Proportional to 1,811.93, 2,717.06 and 579.07

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Solution

The fourth proportional to 1,811.93, 2,717.06 and 579.07 is: 868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.93 : 2,717.06 = 579.07 : x
  2. Step 2: Convert to fraction form
    1,811.93/2,717.06 = 579.07/x
  3. Step 3: Cross multiply
    1,811.93x = 2,717.06 × 579.07
  4. Step 4: Simplify right side
    1,811.93x = 1,573,354.35
  5. Step 5: Solve for x
    x = 1,573,354.35/1,811.93
  6. Step 6: Final answer
    x = 868.33

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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.