Home / 353,960.28-530,945.82-129,366.36

Finding the Fourth Proportional to 353,960.28, 530,945.82 and 129,366.36

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Solution

The fourth proportional to 353,960.28, 530,945.82 and 129,366.36 is: 194,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,960.28 : 530,945.82 = 129,366.36 : x
  2. Step 2: Convert to fraction form
    353,960.28/530,945.82 = 129,366.36/x
  3. Step 3: Cross multiply
    353,960.28x = 530,945.82 × 129,366.36
  4. Step 4: Simplify right side
    353,960.28x = 68,686,528,090.62
  5. Step 5: Solve for x
    x = 68,686,528,090.62/353,960.28
  6. Step 6: Final answer
    x = 194,051.51

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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.