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Finding the Fourth Proportional to 3,412.99, 5,119.49 and 1,104.49

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Solution

The fourth proportional to 3,412.99, 5,119.49 and 1,104.49 is: 1,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.99 : 5,119.49 = 1,104.49 : x
  2. Step 2: Convert to fraction form
    3,412.99/5,119.49 = 1,104.49/x
  3. Step 3: Cross multiply
    3,412.99x = 5,119.49 × 1,104.49
  4. Step 4: Simplify right side
    3,412.99x = 5,654,425.51
  5. Step 5: Solve for x
    x = 5,654,425.51/3,412.99
  6. Step 6: Final answer
    x = 1,656.74

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,413.99, 5,120.99 and 1,105.49
Similar ratio
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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.