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Finding the Fourth Proportional to 377,624.22, 521,171.19 and 226,730.94

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Solution

The fourth proportional to 377,624.22, 521,171.19 and 226,730.94 is: 312,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,624.22 : 521,171.19 = 226,730.94 : x
  2. Step 2: Convert to fraction form
    377,624.22/521,171.19 = 226,730.94/x
  3. Step 3: Cross multiply
    377,624.22x = 521,171.19 × 226,730.94
  4. Step 4: Simplify right side
    377,624.22x = 118,165,633,809.62
  5. Step 5: Solve for x
    x = 118,165,633,809.62/377,624.22
  6. Step 6: Final answer
    x = 312,918.58

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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.