Home / 391,261.82-540,192.21-268,957.58

Finding the Fourth Proportional to 391,261.82, 540,192.21 and 268,957.58

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Solution

The fourth proportional to 391,261.82, 540,192.21 and 268,957.58 is: 371,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,261.82 : 540,192.21 = 268,957.58 : x
  2. Step 2: Convert to fraction form
    391,261.82/540,192.21 = 268,957.58/x
  3. Step 3: Cross multiply
    391,261.82x = 540,192.21 × 268,957.58
  4. Step 4: Simplify right side
    391,261.82x = 145,288,789,536.45
  5. Step 5: Solve for x
    x = 145,288,789,536.45/391,261.82
  6. Step 6: Final answer
    x = 371,333.93

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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.