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Finding the Fourth Proportional to 2,473.78, 3,710.96 and 829.96

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Solution

The fourth proportional to 2,473.78, 3,710.96 and 829.96 is: 1,245.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.78 : 3,710.96 = 829.96 : x
  2. Step 2: Convert to fraction form
    2,473.78/3,710.96 = 829.96/x
  3. Step 3: Cross multiply
    2,473.78x = 3,710.96 × 829.96
  4. Step 4: Simplify right side
    2,473.78x = 3,079,948.36
  5. Step 5: Solve for x
    x = 3,079,948.36/2,473.78
  6. Step 6: Final answer
    x = 1,245.04

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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.