Home / 383,861.12-529,383.84-240,636.80

Finding the Fourth Proportional to 383,861.12, 529,383.84 and 240,636.80

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Solution

The fourth proportional to 383,861.12, 529,383.84 and 240,636.80 is: 331,862.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,861.12 : 529,383.84 = 240,636.80 : x
  2. Step 2: Convert to fraction form
    383,861.12/529,383.84 = 240,636.80/x
  3. Step 3: Cross multiply
    383,861.12x = 529,383.84 × 240,636.80
  4. Step 4: Simplify right side
    383,861.12x = 127,389,233,229.31
  5. Step 5: Solve for x
    x = 127,389,233,229.31/383,861.12
  6. Step 6: Final answer
    x = 331,862.82

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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.