Home / 386,376.18-533,198.77-216,610.34

Finding the Fourth Proportional to 386,376.18, 533,198.77 and 216,610.34

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Solution

The fourth proportional to 386,376.18, 533,198.77 and 216,610.34 is: 298,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,376.18 : 533,198.77 = 216,610.34 : x
  2. Step 2: Convert to fraction form
    386,376.18/533,198.77 = 216,610.34/x
  3. Step 3: Cross multiply
    386,376.18x = 533,198.77 × 216,610.34
  4. Step 4: Simplify right side
    386,376.18x = 115,496,366,857.28
  5. Step 5: Solve for x
    x = 115,496,366,857.28/386,376.18
  6. Step 6: Final answer
    x = 298,922.07

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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.