Home / 644,029.20-966,043.80-194,819.40

Finding the Fourth Proportional to 644,029.20, 966,043.80 and 194,819.40

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Solution

The fourth proportional to 644,029.20, 966,043.80 and 194,819.40 is: 292,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,029.20 : 966,043.80 = 194,819.40 : x
  2. Step 2: Convert to fraction form
    644,029.20/966,043.80 = 194,819.40/x
  3. Step 3: Cross multiply
    644,029.20x = 966,043.80 × 194,819.40
  4. Step 4: Simplify right side
    644,029.20x = 188,204,073,489.72
  5. Step 5: Solve for x
    x = 188,204,073,489.72/644,029.20
  6. Step 6: Final answer
    x = 292,229.10

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Similar ratio
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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.