Home / 386,961.94-533,989.51-214,890.82

Finding the Fourth Proportional to 386,961.94, 533,989.51 and 214,890.82

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Solution

The fourth proportional to 386,961.94, 533,989.51 and 214,890.82 is: 296,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,961.94 : 533,989.51 = 214,890.82 : x
  2. Step 2: Convert to fraction form
    386,961.94/533,989.51 = 214,890.82/x
  3. Step 3: Cross multiply
    386,961.94x = 533,989.51 × 214,890.82
  4. Step 4: Simplify right side
    386,961.94x = 114,749,441,803.10
  5. Step 5: Solve for x
    x = 114,749,441,803.10/386,961.94
  6. Step 6: Final answer
    x = 296,539.35

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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.