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Finding the Fourth Proportional to 572,367, 789,826.92 and 317,698.14

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Solution

The fourth proportional to 572,367, 789,826.92 and 317,698.14 is: 438,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,367 : 789,826.92 = 317,698.14 : x
  2. Step 2: Convert to fraction form
    572,367/789,826.92 = 317,698.14/x
  3. Step 3: Cross multiply
    572,367x = 789,826.92 × 317,698.14
  4. Step 4: Simplify right side
    572,367x = 250,926,543,405.93
  5. Step 5: Solve for x
    x = 250,926,543,405.93/572,367
  6. Step 6: Final answer
    x = 438,401.49

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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.