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Finding the Fourth Proportional to 672,071.98, 927,456.53 and 366,147.41

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Solution

The fourth proportional to 672,071.98, 927,456.53 and 366,147.41 is: 505,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,071.98 : 927,456.53 = 366,147.41 : x
  2. Step 2: Convert to fraction form
    672,071.98/927,456.53 = 366,147.41/x
  3. Step 3: Cross multiply
    672,071.98x = 927,456.53 × 366,147.41
  4. Step 4: Simplify right side
    672,071.98x = 339,585,801,938.65
  5. Step 5: Solve for x
    x = 339,585,801,938.65/672,071.98
  6. Step 6: Final answer
    x = 505,281.90

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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.