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Finding the Fourth Proportional to 3,865.39, 5,798.10 and 943.67

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Solution

The fourth proportional to 3,865.39, 5,798.10 and 943.67 is: 1,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.39 : 5,798.10 = 943.67 : x
  2. Step 2: Convert to fraction form
    3,865.39/5,798.10 = 943.67/x
  3. Step 3: Cross multiply
    3,865.39x = 5,798.10 × 943.67
  4. Step 4: Simplify right side
    3,865.39x = 5,471,493.03
  5. Step 5: Solve for x
    x = 5,471,493.03/3,865.39
  6. Step 6: Final answer
    x = 1,415.51

Related Problems

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Half scale
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Double scale
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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.