Home / 386,878.03-533,891.97-217,112.14

Finding the Fourth Proportional to 386,878.03, 533,891.97 and 217,112.14

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Solution

The fourth proportional to 386,878.03, 533,891.97 and 217,112.14 is: 299,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,878.03 : 533,891.97 = 217,112.14 : x
  2. Step 2: Convert to fraction form
    386,878.03/533,891.97 = 217,112.14/x
  3. Step 3: Cross multiply
    386,878.03x = 533,891.97 × 217,112.14
  4. Step 4: Simplify right side
    386,878.03x = 115,914,428,135.52
  5. Step 5: Solve for x
    x = 115,914,428,135.52/386,878.03
  6. Step 6: Final answer
    x = 299,614.92

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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.