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Finding the Fourth Proportional to 404,246.80, 606,370.20 and 371,441.80

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Solution

The fourth proportional to 404,246.80, 606,370.20 and 371,441.80 is: 557,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,246.80 : 606,370.20 = 371,441.80 : x
  2. Step 2: Convert to fraction form
    404,246.80/606,370.20 = 371,441.80/x
  3. Step 3: Cross multiply
    404,246.80x = 606,370.20 × 371,441.80
  4. Step 4: Simplify right side
    404,246.80x = 225,231,238,554.36
  5. Step 5: Solve for x
    x = 225,231,238,554.36/404,246.80
  6. Step 6: Final answer
    x = 557,162.70

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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.