Home / 753,231.42-1,129,886.01-192,270.78

Finding the Fourth Proportional to 753,231.42, 1,129,886.01 and 192,270.78

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Solution

The fourth proportional to 753,231.42, 1,129,886.01 and 192,270.78 is: 288,416.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,231.42 : 1,129,886.01 = 192,270.78 : x
  2. Step 2: Convert to fraction form
    753,231.42/1,129,886.01 = 192,270.78/x
  3. Step 3: Cross multiply
    753,231.42x = 1,129,886.01 × 192,270.78
  4. Step 4: Simplify right side
    753,231.42x = 217,244,064,453.79
  5. Step 5: Solve for x
    x = 217,244,064,453.79/753,231.42
  6. Step 6: Final answer
    x = 288,416.09

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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.