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Finding the Fourth Proportional to 2,455.62, 3,683.48 and 790.05

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Solution

The fourth proportional to 2,455.62, 3,683.48 and 790.05 is: 1,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.62 : 3,683.48 = 790.05 : x
  2. Step 2: Convert to fraction form
    2,455.62/3,683.48 = 790.05/x
  3. Step 3: Cross multiply
    2,455.62x = 3,683.48 × 790.05
  4. Step 4: Simplify right side
    2,455.62x = 2,910,143.24
  5. Step 5: Solve for x
    x = 2,910,143.24/2,455.62
  6. Step 6: Final answer
    x = 1,185.10

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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.