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Finding the Fourth Proportional to 2,336.51, 3,504.78 and 605

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Solution

The fourth proportional to 2,336.51, 3,504.78 and 605 is: 907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.51 : 3,504.78 = 605 : x
  2. Step 2: Convert to fraction form
    2,336.51/3,504.78 = 605/x
  3. Step 3: Cross multiply
    2,336.51x = 3,504.78 × 605
  4. Step 4: Simplify right side
    2,336.51x = 2,120,391.90
  5. Step 5: Solve for x
    x = 2,120,391.90/2,336.51
  6. Step 6: Final answer
    x = 907.50

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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.