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Finding the Fourth Proportional to 484,429.60, 726,860.40 and 169,112.80

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Solution

The fourth proportional to 484,429.60, 726,860.40 and 169,112.80 is: 253,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,429.60 : 726,860.40 = 169,112.80 : x
  2. Step 2: Convert to fraction form
    484,429.60/726,860.40 = 169,112.80/x
  3. Step 3: Cross multiply
    484,429.60x = 726,860.40 × 169,112.80
  4. Step 4: Simplify right side
    484,429.60x = 122,921,397,453.12
  5. Step 5: Solve for x
    x = 122,921,397,453.12/484,429.60
  6. Step 6: Final answer
    x = 253,744.60

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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.