Home / 655,285.97-982,985.77-199,979.72

Finding the Fourth Proportional to 655,285.97, 982,985.77 and 199,979.72

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Solution

The fourth proportional to 655,285.97, 982,985.77 and 199,979.72 is: 299,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,285.97 : 982,985.77 = 199,979.72 : x
  2. Step 2: Convert to fraction form
    655,285.97/982,985.77 = 199,979.72/x
  3. Step 3: Cross multiply
    655,285.97x = 982,985.77 × 199,979.72
  4. Step 4: Simplify right side
    655,285.97x = 196,577,216,944.94
  5. Step 5: Solve for x
    x = 196,577,216,944.94/655,285.97
  6. Step 6: Final answer
    x = 299,986.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.