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Finding the Fourth Proportional to 518,141.76, 777,240.40 and 163,183.44

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Solution

The fourth proportional to 518,141.76, 777,240.40 and 163,183.44 is: 244,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,141.76 : 777,240.40 = 163,183.44 : x
  2. Step 2: Convert to fraction form
    518,141.76/777,240.40 = 163,183.44/x
  3. Step 3: Cross multiply
    518,141.76x = 777,240.40 × 163,183.44
  4. Step 4: Simplify right side
    518,141.76x = 126,832,762,178.98
  5. Step 5: Solve for x
    x = 126,832,762,178.98/518,141.76
  6. Step 6: Final answer
    x = 244,783.90

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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.