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Finding the Fourth Proportional to 524,764.20, 786,951.90 and 169,789.80

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Solution

The fourth proportional to 524,764.20, 786,951.90 and 169,789.80 is: 254,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,764.20 : 786,951.90 = 169,789.80 : x
  2. Step 2: Convert to fraction form
    524,764.20/786,951.90 = 169,789.80/x
  3. Step 3: Cross multiply
    524,764.20x = 786,951.90 × 169,789.80
  4. Step 4: Simplify right side
    524,764.20x = 133,616,405,710.62
  5. Step 5: Solve for x
    x = 133,616,405,710.62/524,764.20
  6. Step 6: Final answer
    x = 254,621.80

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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.