Home / 392,059.24-540,842.27-256,172.63

Finding the Fourth Proportional to 392,059.24, 540,842.27 and 256,172.63

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Solution

The fourth proportional to 392,059.24, 540,842.27 and 256,172.63 is: 353,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,059.24 : 540,842.27 = 256,172.63 : x
  2. Step 2: Convert to fraction form
    392,059.24/540,842.27 = 256,172.63/x
  3. Step 3: Cross multiply
    392,059.24x = 540,842.27 × 256,172.63
  4. Step 4: Simplify right side
    392,059.24x = 138,548,982,736.00
  5. Step 5: Solve for x
    x = 138,548,982,736.00/392,059.24
  6. Step 6: Final answer
    x = 353,387.88

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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.