Home / 386,863.07-533,909.37-217,097.87

Finding the Fourth Proportional to 386,863.07, 533,909.37 and 217,097.87

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Solution

The fourth proportional to 386,863.07, 533,909.37 and 217,097.87 is: 299,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,863.07 : 533,909.37 = 217,097.87 : x
  2. Step 2: Convert to fraction form
    386,863.07/533,909.37 = 217,097.87/x
  3. Step 3: Cross multiply
    386,863.07x = 533,909.37 × 217,097.87
  4. Step 4: Simplify right side
    386,863.07x = 115,910,587,000.04
  5. Step 5: Solve for x
    x = 115,910,587,000.04/386,863.07
  6. Step 6: Final answer
    x = 299,616.57

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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.