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Finding the Fourth Proportional to 629,890.80, 944,893.80 and 255,836.40

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Solution

The fourth proportional to 629,890.80, 944,893.80 and 255,836.40 is: 383,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,890.80 : 944,893.80 = 255,836.40 : x
  2. Step 2: Convert to fraction form
    629,890.80/944,893.80 = 255,836.40/x
  3. Step 3: Cross multiply
    629,890.80x = 944,893.80 × 255,836.40
  4. Step 4: Simplify right side
    629,890.80x = 241,738,228,174.32
  5. Step 5: Solve for x
    x = 241,738,228,174.32/629,890.80
  6. Step 6: Final answer
    x = 383,777.99

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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.