Home / 628,912.40-943,415.04-179,671.28

Finding the Fourth Proportional to 628,912.40, 943,415.04 and 179,671.28

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Solution

The fourth proportional to 628,912.40, 943,415.04 and 179,671.28 is: 269,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,912.40 : 943,415.04 = 179,671.28 : x
  2. Step 2: Convert to fraction form
    628,912.40/943,415.04 = 179,671.28/x
  3. Step 3: Cross multiply
    628,912.40x = 943,415.04 × 179,671.28
  4. Step 4: Simplify right side
    628,912.40x = 169,504,587,808.05
  5. Step 5: Solve for x
    x = 169,504,587,808.05/628,912.40
  6. Step 6: Final answer
    x = 269,520.19

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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.