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Finding the Fourth Proportional to 572,162.82, 789,591.81 and 317,537.70

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Solution

The fourth proportional to 572,162.82, 789,591.81 and 317,537.70 is: 438,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,162.82 : 789,591.81 = 317,537.70 : x
  2. Step 2: Convert to fraction form
    572,162.82/789,591.81 = 317,537.70/x
  3. Step 3: Cross multiply
    572,162.82x = 789,591.81 × 317,537.70
  4. Step 4: Simplify right side
    572,162.82x = 250,725,167,286.24
  5. Step 5: Solve for x
    x = 250,725,167,286.24/572,162.82
  6. Step 6: Final answer
    x = 438,205.98

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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.