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Finding the Fourth Proportional to 3,192.78, 4,405.74 and 1,795.26

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Solution

The fourth proportional to 3,192.78, 4,405.74 and 1,795.26 is: 2,477.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.78 : 4,405.74 = 1,795.26 : x
  2. Step 2: Convert to fraction form
    3,192.78/4,405.74 = 1,795.26/x
  3. Step 3: Cross multiply
    3,192.78x = 4,405.74 × 1,795.26
  4. Step 4: Simplify right side
    3,192.78x = 7,909,448.79
  5. Step 5: Solve for x
    x = 7,909,448.79/3,192.78
  6. Step 6: Final answer
    x = 2,477.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.