Home / 712,194.22-982,828.24-389,924.78

Finding the Fourth Proportional to 712,194.22, 982,828.24 and 389,924.78

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Solution

The fourth proportional to 712,194.22, 982,828.24 and 389,924.78 is: 538,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,194.22 : 982,828.24 = 389,924.78 : x
  2. Step 2: Convert to fraction form
    712,194.22/982,828.24 = 389,924.78/x
  3. Step 3: Cross multiply
    712,194.22x = 982,828.24 × 389,924.78
  4. Step 4: Simplify right side
    712,194.22x = 383,229,085,259.79
  5. Step 5: Solve for x
    x = 383,229,085,259.79/712,194.22
  6. Step 6: Final answer
    x = 538,096.31

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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.