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Finding the Fourth Proportional to 571,997.75, 789,341.85 and 313,873.91

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Solution

The fourth proportional to 571,997.75, 789,341.85 and 313,873.91 is: 433,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,997.75 : 789,341.85 = 313,873.91 : x
  2. Step 2: Convert to fraction form
    571,997.75/789,341.85 = 313,873.91/x
  3. Step 3: Cross multiply
    571,997.75x = 789,341.85 × 313,873.91
  4. Step 4: Simplify right side
    571,997.75x = 247,753,808,839.42
  5. Step 5: Solve for x
    x = 247,753,808,839.42/571,997.75
  6. Step 6: Final answer
    x = 433,137.73

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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.