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Finding the Fourth Proportional to 536,183.70, 739,951.65 and 306,778.74

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Solution

The fourth proportional to 536,183.70, 739,951.65 and 306,778.74 is: 423,365.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,183.70 : 739,951.65 = 306,778.74 : x
  2. Step 2: Convert to fraction form
    536,183.70/739,951.65 = 306,778.74/x
  3. Step 3: Cross multiply
    536,183.70x = 739,951.65 × 306,778.74
  4. Step 4: Simplify right side
    536,183.70x = 227,001,434,847.92
  5. Step 5: Solve for x
    x = 227,001,434,847.92/536,183.70
  6. Step 6: Final answer
    x = 423,365.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.