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Finding the Fourth Proportional to 3,439.44, 5,158.38 and 973.69

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Solution

The fourth proportional to 3,439.44, 5,158.38 and 973.69 is: 1,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.44 : 5,158.38 = 973.69 : x
  2. Step 2: Convert to fraction form
    3,439.44/5,158.38 = 973.69/x
  3. Step 3: Cross multiply
    3,439.44x = 5,158.38 × 973.69
  4. Step 4: Simplify right side
    3,439.44x = 5,022,663.02
  5. Step 5: Solve for x
    x = 5,022,663.02/3,439.44
  6. Step 6: Final answer
    x = 1,460.31

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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.