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Finding the Fourth Proportional to 330,871.50, 495,517.50 and 190,334.88

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Solution

The fourth proportional to 330,871.50, 495,517.50 and 190,334.88 is: 285,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,871.50 : 495,517.50 = 190,334.88 : x
  2. Step 2: Convert to fraction form
    330,871.50/495,517.50 = 190,334.88/x
  3. Step 3: Cross multiply
    330,871.50x = 495,517.50 × 190,334.88
  4. Step 4: Simplify right side
    330,871.50x = 94,314,263,900.40
  5. Step 5: Solve for x
    x = 94,314,263,900.40/330,871.50
  6. Step 6: Final answer
    x = 285,048.01

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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.