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Finding the Fourth Proportional to 351,340.77, 484,849.70 and 190,195.77

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Solution

The fourth proportional to 351,340.77, 484,849.70 and 190,195.77 is: 262,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,340.77 : 484,849.70 = 190,195.77 : x
  2. Step 2: Convert to fraction form
    351,340.77/484,849.70 = 190,195.77/x
  3. Step 3: Cross multiply
    351,340.77x = 484,849.70 × 190,195.77
  4. Step 4: Simplify right side
    351,340.77x = 92,216,361,074.79
  5. Step 5: Solve for x
    x = 92,216,361,074.79/351,340.77
  6. Step 6: Final answer
    x = 262,469.86

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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.