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Finding the Fourth Proportional to 2,333.49, 3,220.30 and 1,449.78

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Solution

The fourth proportional to 2,333.49, 3,220.30 and 1,449.78 is: 2,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.49 : 3,220.30 = 1,449.78 : x
  2. Step 2: Convert to fraction form
    2,333.49/3,220.30 = 1,449.78/x
  3. Step 3: Cross multiply
    2,333.49x = 3,220.30 × 1,449.78
  4. Step 4: Simplify right side
    2,333.49x = 4,668,726.53
  5. Step 5: Solve for x
    x = 4,668,726.53/2,333.49
  6. Step 6: Final answer
    x = 2,000.75

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1.5x scale

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.