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Finding the Fourth Proportional to 571,894.74, 789,309.36 and 317,327.94

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Solution

The fourth proportional to 571,894.74, 789,309.36 and 317,327.94 is: 437,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,894.74 : 789,309.36 = 317,327.94 : x
  2. Step 2: Convert to fraction form
    571,894.74/789,309.36 = 317,327.94/x
  3. Step 3: Cross multiply
    571,894.74x = 789,309.36 × 317,327.94
  4. Step 4: Simplify right side
    571,894.74x = 250,469,913,231.52
  5. Step 5: Solve for x
    x = 250,469,913,231.52/571,894.74
  6. Step 6: Final answer
    x = 437,965.06

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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.