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Finding the Fourth Proportional to 494,633.70, 741,950.55 and 317,486.70

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Solution

The fourth proportional to 494,633.70, 741,950.55 and 317,486.70 is: 476,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,633.70 : 741,950.55 = 317,486.70 : x
  2. Step 2: Convert to fraction form
    494,633.70/741,950.55 = 317,486.70/x
  3. Step 3: Cross multiply
    494,633.70x = 741,950.55 × 317,486.70
  4. Step 4: Simplify right side
    494,633.70x = 235,559,431,682.69
  5. Step 5: Solve for x
    x = 235,559,431,682.69/494,633.70
  6. Step 6: Final answer
    x = 476,230.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.