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Finding the Fourth Proportional to 437,676.40, 656,251.80 and 171,119.08

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Solution

The fourth proportional to 437,676.40, 656,251.80 and 171,119.08 is: 256,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,676.40 : 656,251.80 = 171,119.08 : x
  2. Step 2: Convert to fraction form
    437,676.40/656,251.80 = 171,119.08/x
  3. Step 3: Cross multiply
    437,676.40x = 656,251.80 × 171,119.08
  4. Step 4: Simplify right side
    437,676.40x = 112,297,204,264.34
  5. Step 5: Solve for x
    x = 112,297,204,264.34/437,676.40
  6. Step 6: Final answer
    x = 256,575.87

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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.