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Finding the Fourth Proportional to 437,676.66, 656,329.05 and 171,394.83

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Solution

The fourth proportional to 437,676.66, 656,329.05 and 171,394.83 is: 257,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,676.66 : 656,329.05 = 171,394.83 : x
  2. Step 2: Convert to fraction form
    437,676.66/656,329.05 = 171,394.83/x
  3. Step 3: Cross multiply
    437,676.66x = 656,329.05 × 171,394.83
  4. Step 4: Simplify right side
    437,676.66x = 112,491,405,948.81
  5. Step 5: Solve for x
    x = 112,491,405,948.81/437,676.66
  6. Step 6: Final answer
    x = 257,019.43

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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.