Home / 389,186.88-537,057.05-219,410.07

Finding the Fourth Proportional to 389,186.88, 537,057.05 and 219,410.07

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Solution

The fourth proportional to 389,186.88, 537,057.05 and 219,410.07 is: 302,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,186.88 : 537,057.05 = 219,410.07 : x
  2. Step 2: Convert to fraction form
    389,186.88/537,057.05 = 219,410.07/x
  3. Step 3: Cross multiply
    389,186.88x = 537,057.05 × 219,410.07
  4. Step 4: Simplify right side
    389,186.88x = 117,835,723,837.44
  5. Step 5: Solve for x
    x = 117,835,723,837.44/389,186.88
  6. Step 6: Final answer
    x = 302,774.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.