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Finding the Fourth Proportional to 4,479.64, 6,719.42 and 1,193.00

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Solution

The fourth proportional to 4,479.64, 6,719.42 and 1,193.00 is: 1,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.64 : 6,719.42 = 1,193.00 : x
  2. Step 2: Convert to fraction form
    4,479.64/6,719.42 = 1,193.00/x
  3. Step 3: Cross multiply
    4,479.64x = 6,719.42 × 1,193.00
  4. Step 4: Simplify right side
    4,479.64x = 8,016,237.45
  5. Step 5: Solve for x
    x = 8,016,237.45/4,479.64
  6. Step 6: Final answer
    x = 1,789.48

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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.