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Finding the Fourth Proportional to 394,516.70, 591,775.05 and 394,516.70

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Solution

The fourth proportional to 394,516.70, 591,775.05 and 394,516.70 is: 591,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,516.70 : 591,775.05 = 394,516.70 : x
  2. Step 2: Convert to fraction form
    394,516.70/591,775.05 = 394,516.70/x
  3. Step 3: Cross multiply
    394,516.70x = 591,775.05 × 394,516.70
  4. Step 4: Simplify right side
    394,516.70x = 233,465,139,868.34
  5. Step 5: Solve for x
    x = 233,465,139,868.34/394,516.70
  6. Step 6: Final answer
    x = 591,775.05

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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.