Home / 386,857.57-533,839.42-214,765.50

Finding the Fourth Proportional to 386,857.57, 533,839.42 and 214,765.50

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Solution

The fourth proportional to 386,857.57, 533,839.42 and 214,765.50 is: 296,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,857.57 : 533,839.42 = 214,765.50 : x
  2. Step 2: Convert to fraction form
    386,857.57/533,839.42 = 214,765.50/x
  3. Step 3: Cross multiply
    386,857.57x = 533,839.42 × 214,765.50
  4. Step 4: Simplify right side
    386,857.57x = 114,650,286,212.99
  5. Step 5: Solve for x
    x = 114,650,286,212.99/386,857.57
  6. Step 6: Final answer
    x = 296,363.05

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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.