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Finding the Fourth Proportional to 3,283.28, 4,922.42 and 1,641.01

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Solution

The fourth proportional to 3,283.28, 4,922.42 and 1,641.01 is: 2,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,283.28 : 4,922.42 = 1,641.01 : x
  2. Step 2: Convert to fraction form
    3,283.28/4,922.42 = 1,641.01/x
  3. Step 3: Cross multiply
    3,283.28x = 4,922.42 × 1,641.01
  4. Step 4: Simplify right side
    3,283.28x = 8,077,738.39
  5. Step 5: Solve for x
    x = 8,077,738.39/3,283.28
  6. Step 6: Final answer
    x = 2,460.26

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Find fourth proportional to 1,641.64, 2,461.21 and 820.50
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.