Home / 385,905.51-579,388.49-196,493.13

Finding the Fourth Proportional to 385,905.51, 579,388.49 and 196,493.13

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Solution

The fourth proportional to 385,905.51, 579,388.49 and 196,493.13 is: 295,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,905.51 : 579,388.49 = 196,493.13 : x
  2. Step 2: Convert to fraction form
    385,905.51/579,388.49 = 196,493.13/x
  3. Step 3: Cross multiply
    385,905.51x = 579,388.49 × 196,493.13
  4. Step 4: Simplify right side
    385,905.51x = 113,845,856,903.61
  5. Step 5: Solve for x
    x = 113,845,856,903.61/385,905.51
  6. Step 6: Final answer
    x = 295,009.67

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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.