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Finding the Fourth Proportional to 628,674.75, 943,020.78 and 179,395.48

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Solution

The fourth proportional to 628,674.75, 943,020.78 and 179,395.48 is: 269,095.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,674.75 : 943,020.78 = 179,395.48 : x
  2. Step 2: Convert to fraction form
    628,674.75/943,020.78 = 179,395.48/x
  3. Step 3: Cross multiply
    628,674.75x = 943,020.78 × 179,395.48
  4. Step 4: Simplify right side
    628,674.75x = 169,173,665,478.07
  5. Step 5: Solve for x
    x = 169,173,665,478.07/628,674.75
  6. Step 6: Final answer
    x = 269,095.69

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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.