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Finding the Fourth Proportional to 263,846.60, 396,000.30 and 211,123.40

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Solution

The fourth proportional to 263,846.60, 396,000.30 and 211,123.40 is: 316,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,846.60 : 396,000.30 = 211,123.40 : x
  2. Step 2: Convert to fraction form
    263,846.60/396,000.30 = 211,123.40/x
  3. Step 3: Cross multiply
    263,846.60x = 396,000.30 × 211,123.40
  4. Step 4: Simplify right side
    263,846.60x = 83,604,929,737.02
  5. Step 5: Solve for x
    x = 83,604,929,737.02/263,846.60
  6. Step 6: Final answer
    x = 316,869.46

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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.