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Finding the Fourth Proportional to 683,709.14, 1,025,785.14 and 328,677.02

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Solution

The fourth proportional to 683,709.14, 1,025,785.14 and 328,677.02 is: 493,121.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,709.14 : 1,025,785.14 = 328,677.02 : x
  2. Step 2: Convert to fraction form
    683,709.14/1,025,785.14 = 328,677.02/x
  3. Step 3: Cross multiply
    683,709.14x = 1,025,785.14 × 328,677.02
  4. Step 4: Simplify right side
    683,709.14x = 337,152,002,975.48
  5. Step 5: Solve for x
    x = 337,152,002,975.48/683,709.14
  6. Step 6: Final answer
    x = 493,121.98

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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.