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Finding the Fourth Proportional to 518,324.76, 777,711.78 and 252,316.44

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Solution

The fourth proportional to 518,324.76, 777,711.78 and 252,316.44 is: 378,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,324.76 : 777,711.78 = 252,316.44 : x
  2. Step 2: Convert to fraction form
    518,324.76/777,711.78 = 252,316.44/x
  3. Step 3: Cross multiply
    518,324.76x = 777,711.78 × 252,316.44
  4. Step 4: Simplify right side
    518,324.76x = 196,229,467,675.66
  5. Step 5: Solve for x
    x = 196,229,467,675.66/518,324.76
  6. Step 6: Final answer
    x = 378,584.01

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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.