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Finding the Fourth Proportional to 330,794.20, 496,256.10 and 141,254.20

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Solution

The fourth proportional to 330,794.20, 496,256.10 and 141,254.20 is: 211,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,794.20 : 496,256.10 = 141,254.20 : x
  2. Step 2: Convert to fraction form
    330,794.20/496,256.10 = 141,254.20/x
  3. Step 3: Cross multiply
    330,794.20x = 496,256.10 × 141,254.20
  4. Step 4: Simplify right side
    330,794.20x = 70,098,258,400.62
  5. Step 5: Solve for x
    x = 70,098,258,400.62/330,794.20
  6. Step 6: Final answer
    x = 211,908.97

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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.