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Finding the Fourth Proportional to 494,559.60, 741,839.40 and 317,266.80

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Solution

The fourth proportional to 494,559.60, 741,839.40 and 317,266.80 is: 475,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,559.60 : 741,839.40 = 317,266.80 : x
  2. Step 2: Convert to fraction form
    494,559.60/741,839.40 = 317,266.80/x
  3. Step 3: Cross multiply
    494,559.60x = 741,839.40 × 317,266.80
  4. Step 4: Simplify right side
    494,559.60x = 235,361,012,551.92
  5. Step 5: Solve for x
    x = 235,361,012,551.92/494,559.60
  6. Step 6: Final answer
    x = 475,900.20

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1.5x scale

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.