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Finding the Fourth Proportional to 339,100.40, 508,780.20 and 333,786.80

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Solution

The fourth proportional to 339,100.40, 508,780.20 and 333,786.80 is: 500,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,100.40 : 508,780.20 = 333,786.80 : x
  2. Step 2: Convert to fraction form
    339,100.40/508,780.20 = 333,786.80/x
  3. Step 3: Cross multiply
    339,100.40x = 508,780.20 × 333,786.80
  4. Step 4: Simplify right side
    339,100.40x = 169,824,114,861.36
  5. Step 5: Solve for x
    x = 169,824,114,861.36/339,100.40
  6. Step 6: Final answer
    x = 500,807.77

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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.