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Finding the Fourth Proportional to 330,755.20, 495,508.46 and 195,415.42

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Solution

The fourth proportional to 330,755.20, 495,508.46 and 195,415.42 is: 292,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,755.20 : 495,508.46 = 195,415.42 : x
  2. Step 2: Convert to fraction form
    330,755.20/495,508.46 = 195,415.42/x
  3. Step 3: Cross multiply
    330,755.20x = 495,508.46 × 195,415.42
  4. Step 4: Simplify right side
    330,755.20x = 96,829,993,824.45
  5. Step 5: Solve for x
    x = 96,829,993,824.45/330,755.20
  6. Step 6: Final answer
    x = 292,754.26

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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.