Home / 287,634.12-396,963.11-214,910.83

Finding the Fourth Proportional to 287,634.12, 396,963.11 and 214,910.83

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Solution

The fourth proportional to 287,634.12, 396,963.11 and 214,910.83 is: 296,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,634.12 : 396,963.11 = 214,910.83 : x
  2. Step 2: Convert to fraction form
    287,634.12/396,963.11 = 214,910.83/x
  3. Step 3: Cross multiply
    287,634.12x = 396,963.11 × 214,910.83
  4. Step 4: Simplify right side
    287,634.12x = 85,311,672,482.96
  5. Step 5: Solve for x
    x = 85,311,672,482.96/287,634.12
  6. Step 6: Final answer
    x = 296,597.89

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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.