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Finding the Fourth Proportional to 416,786.60, 624,515.58 and 266,903.60

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Solution

The fourth proportional to 416,786.60, 624,515.58 and 266,903.60 is: 399,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,786.60 : 624,515.58 = 266,903.60 : x
  2. Step 2: Convert to fraction form
    416,786.60/624,515.58 = 266,903.60/x
  3. Step 3: Cross multiply
    416,786.60x = 624,515.58 × 266,903.60
  4. Step 4: Simplify right side
    416,786.60x = 166,685,456,558.09
  5. Step 5: Solve for x
    x = 166,685,456,558.09/416,786.60
  6. Step 6: Final answer
    x = 399,929.98

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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.