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Finding the Fourth Proportional to 351,622.44, 485,240.45 and 190,477.49

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Solution

The fourth proportional to 351,622.44, 485,240.45 and 190,477.49 is: 262,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,622.44 : 485,240.45 = 190,477.49 : x
  2. Step 2: Convert to fraction form
    351,622.44/485,240.45 = 190,477.49/x
  3. Step 3: Cross multiply
    351,622.44x = 485,240.45 × 190,477.49
  4. Step 4: Simplify right side
    351,622.44x = 92,427,380,536.27
  5. Step 5: Solve for x
    x = 92,427,380,536.27/351,622.44
  6. Step 6: Final answer
    x = 262,859.74

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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.