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Finding the Fourth Proportional to 338,559.40, 507,968.70 and 333,245.80

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Solution

The fourth proportional to 338,559.40, 507,968.70 and 333,245.80 is: 499,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,559.40 : 507,968.70 = 333,245.80 : x
  2. Step 2: Convert to fraction form
    338,559.40/507,968.70 = 333,245.80/x
  3. Step 3: Cross multiply
    338,559.40x = 507,968.70 × 333,245.80
  4. Step 4: Simplify right side
    338,559.40x = 169,278,435,806.46
  5. Step 5: Solve for x
    x = 169,278,435,806.46/338,559.40
  6. Step 6: Final answer
    x = 499,996.27

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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.