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Finding the Fourth Proportional to 415,674.49, 623,676.44 and 216,120.73

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Solution

The fourth proportional to 415,674.49, 623,676.44 and 216,120.73 is: 324,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,674.49 : 623,676.44 = 216,120.73 : x
  2. Step 2: Convert to fraction form
    415,674.49/623,676.44 = 216,120.73/x
  3. Step 3: Cross multiply
    415,674.49x = 623,676.44 × 216,120.73
  4. Step 4: Simplify right side
    415,674.49x = 134,789,406,416.00
  5. Step 5: Solve for x
    x = 134,789,406,416.00/415,674.49
  6. Step 6: Final answer
    x = 324,266.73

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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.