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Finding the Fourth Proportional to 322,021.80, 482,619.60 and 179,866.80

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Solution

The fourth proportional to 322,021.80, 482,619.60 and 179,866.80 is: 269,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,021.80 : 482,619.60 = 179,866.80 : x
  2. Step 2: Convert to fraction form
    322,021.80/482,619.60 = 179,866.80/x
  3. Step 3: Cross multiply
    322,021.80x = 482,619.60 × 179,866.80
  4. Step 4: Simplify right side
    322,021.80x = 86,807,243,069.28
  5. Step 5: Solve for x
    x = 86,807,243,069.28/322,021.80
  6. Step 6: Final answer
    x = 269,569.46

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1.5x scale

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.