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Finding the Fourth Proportional to 3,358.89, 5,039.45 and 1,798.55

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Solution

The fourth proportional to 3,358.89, 5,039.45 and 1,798.55 is: 2,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.89 : 5,039.45 = 1,798.55 : x
  2. Step 2: Convert to fraction form
    3,358.89/5,039.45 = 1,798.55/x
  3. Step 3: Cross multiply
    3,358.89x = 5,039.45 × 1,798.55
  4. Step 4: Simplify right side
    3,358.89x = 9,063,668.61
  5. Step 5: Solve for x
    x = 9,063,668.61/3,358.89
  6. Step 6: Final answer
    x = 2,698.41

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1.5x scale

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.