Home / 386,961.97-533,989.57-214,890.86

Finding the Fourth Proportional to 386,961.97, 533,989.57 and 214,890.86

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Solution

The fourth proportional to 386,961.97, 533,989.57 and 214,890.86 is: 296,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,961.97 : 533,989.57 = 214,890.86 : x
  2. Step 2: Convert to fraction form
    386,961.97/533,989.57 = 214,890.86/x
  3. Step 3: Cross multiply
    386,961.97x = 533,989.57 × 214,890.86
  4. Step 4: Simplify right side
    386,961.97x = 114,749,477,849.24
  5. Step 5: Solve for x
    x = 114,749,477,849.24/386,961.97
  6. Step 6: Final answer
    x = 296,539.42

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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.