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Finding the Fourth Proportional to 524,882.85, 787,324.28 and 419,906.85

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Solution

The fourth proportional to 524,882.85, 787,324.28 and 419,906.85 is: 629,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,882.85 : 787,324.28 = 419,906.85 : x
  2. Step 2: Convert to fraction form
    524,882.85/787,324.28 = 419,906.85/x
  3. Step 3: Cross multiply
    524,882.85x = 787,324.28 × 419,906.85
  4. Step 4: Simplify right side
    524,882.85x = 330,602,856,243.78
  5. Step 5: Solve for x
    x = 330,602,856,243.78/524,882.85
  6. Step 6: Final answer
    x = 629,860.28

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Double scale
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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.