Home / 386,371.28-533,217.96-216,616.40

Finding the Fourth Proportional to 386,371.28, 533,217.96 and 216,616.40

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Solution

The fourth proportional to 386,371.28, 533,217.96 and 216,616.40 is: 298,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,371.28 : 533,217.96 = 216,616.40 : x
  2. Step 2: Convert to fraction form
    386,371.28/533,217.96 = 216,616.40/x
  3. Step 3: Cross multiply
    386,371.28x = 533,217.96 × 216,616.40
  4. Step 4: Simplify right side
    386,371.28x = 115,503,754,910.54
  5. Step 5: Solve for x
    x = 115,503,754,910.54/386,371.28
  6. Step 6: Final answer
    x = 298,944.98

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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.