Home / 389,947.84-538,173.12-236,993.92

Finding the Fourth Proportional to 389,947.84, 538,173.12 and 236,993.92

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Solution

The fourth proportional to 389,947.84, 538,173.12 and 236,993.92 is: 327,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,947.84 : 538,173.12 = 236,993.92 : x
  2. Step 2: Convert to fraction form
    389,947.84/538,173.12 = 236,993.92/x
  3. Step 3: Cross multiply
    389,947.84x = 538,173.12 × 236,993.92
  4. Step 4: Simplify right side
    389,947.84x = 127,543,757,347.43
  5. Step 5: Solve for x
    x = 127,543,757,347.43/389,947.84
  6. Step 6: Final answer
    x = 327,079.02

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1.5x scale

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.