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Finding the Fourth Proportional to 571,793.44, 789,075.46 and 317,144.62

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Solution

The fourth proportional to 571,793.44, 789,075.46 and 317,144.62 is: 437,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,793.44 : 789,075.46 = 317,144.62 : x
  2. Step 2: Convert to fraction form
    571,793.44/789,075.46 = 317,144.62/x
  3. Step 3: Cross multiply
    571,793.44x = 789,075.46 × 317,144.62
  4. Step 4: Simplify right side
    571,793.44x = 250,251,036,913.03
  5. Step 5: Solve for x
    x = 250,251,036,913.03/571,793.44
  6. Step 6: Final answer
    x = 437,659.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.