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Finding the Fourth Proportional to 351,859.41, 485,563.26 and 190,710.30

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Solution

The fourth proportional to 351,859.41, 485,563.26 and 190,710.30 is: 263,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,859.41 : 485,563.26 = 190,710.30 : x
  2. Step 2: Convert to fraction form
    351,859.41/485,563.26 = 190,710.30/x
  3. Step 3: Cross multiply
    351,859.41x = 485,563.26 × 190,710.30
  4. Step 4: Simplify right side
    351,859.41x = 92,601,914,983.58
  5. Step 5: Solve for x
    x = 92,601,914,983.58/351,859.41
  6. Step 6: Final answer
    x = 263,178.74

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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.