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Finding the Fourth Proportional to 330,190.70, 495,286.05 and 93,530.30

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Solution

The fourth proportional to 330,190.70, 495,286.05 and 93,530.30 is: 140,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,190.70 : 495,286.05 = 93,530.30 : x
  2. Step 2: Convert to fraction form
    330,190.70/495,286.05 = 93,530.30/x
  3. Step 3: Cross multiply
    330,190.70x = 495,286.05 × 93,530.30
  4. Step 4: Simplify right side
    330,190.70x = 46,324,252,842.32
  5. Step 5: Solve for x
    x = 46,324,252,842.32/330,190.70
  6. Step 6: Final answer
    x = 140,295.45

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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.