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Finding the Fourth Proportional to 492,470.33, 679,866.01 and 349,571.75

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Solution

The fourth proportional to 492,470.33, 679,866.01 and 349,571.75 is: 482,591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,470.33 : 679,866.01 = 349,571.75 : x
  2. Step 2: Convert to fraction form
    492,470.33/679,866.01 = 349,571.75/x
  3. Step 3: Cross multiply
    492,470.33x = 679,866.01 × 349,571.75
  4. Step 4: Simplify right side
    492,470.33x = 237,661,950,432.20
  5. Step 5: Solve for x
    x = 237,661,950,432.20/492,470.33
  6. Step 6: Final answer
    x = 482,591.41

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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.