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Finding the Fourth Proportional to 481,299.68, 664,185.60 and 266,435.20

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Solution

The fourth proportional to 481,299.68, 664,185.60 and 266,435.20 is: 367,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,299.68 : 664,185.60 = 266,435.20 : x
  2. Step 2: Convert to fraction form
    481,299.68/664,185.60 = 266,435.20/x
  3. Step 3: Cross multiply
    481,299.68x = 664,185.60 × 266,435.20
  4. Step 4: Simplify right side
    481,299.68x = 176,962,423,173.12
  5. Step 5: Solve for x
    x = 176,962,423,173.12/481,299.68
  6. Step 6: Final answer
    x = 367,676.17

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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.