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Finding the Fourth Proportional to 330,874.80, 496,312.20 and 294,133.20

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Solution

The fourth proportional to 330,874.80, 496,312.20 and 294,133.20 is: 441,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,874.80 : 496,312.20 = 294,133.20 : x
  2. Step 2: Convert to fraction form
    330,874.80/496,312.20 = 294,133.20/x
  3. Step 3: Cross multiply
    330,874.80x = 496,312.20 × 294,133.20
  4. Step 4: Simplify right side
    330,874.80x = 145,981,895,585.04
  5. Step 5: Solve for x
    x = 145,981,895,585.04/330,874.80
  6. Step 6: Final answer
    x = 441,199.80

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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.