Home / 353,961.28-530,947.32-129,367.36

Finding the Fourth Proportional to 353,961.28, 530,947.32 and 129,367.36

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Solution

The fourth proportional to 353,961.28, 530,947.32 and 129,367.36 is: 194,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,961.28 : 530,947.32 = 129,367.36 : x
  2. Step 2: Convert to fraction form
    353,961.28/530,947.32 = 129,367.36/x
  3. Step 3: Cross multiply
    353,961.28x = 530,947.32 × 129,367.36
  4. Step 4: Simplify right side
    353,961.28x = 68,687,253,087.48
  5. Step 5: Solve for x
    x = 68,687,253,087.48/353,961.28
  6. Step 6: Final answer
    x = 194,053.01

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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.