Home / 389,685.13-537,707.82-236,643.73

Finding the Fourth Proportional to 389,685.13, 537,707.82 and 236,643.73

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Solution

The fourth proportional to 389,685.13, 537,707.82 and 236,643.73 is: 326,533.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,685.13 : 537,707.82 = 236,643.73 : x
  2. Step 2: Convert to fraction form
    389,685.13/537,707.82 = 236,643.73/x
  3. Step 3: Cross multiply
    389,685.13x = 537,707.82 × 236,643.73
  4. Step 4: Simplify right side
    389,685.13x = 127,245,184,174.97
  5. Step 5: Solve for x
    x = 127,245,184,174.97/389,685.13
  6. Step 6: Final answer
    x = 326,533.33

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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.