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Finding the Fourth Proportional to 395,998.94, 593,938.27 and 129,753.56

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Solution

The fourth proportional to 395,998.94, 593,938.27 and 129,753.56 is: 194,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,998.94 : 593,938.27 = 129,753.56 : x
  2. Step 2: Convert to fraction form
    395,998.94/593,938.27 = 129,753.56/x
  3. Step 3: Cross multiply
    395,998.94x = 593,938.27 × 129,753.56
  4. Step 4: Simplify right side
    395,998.94x = 77,065,604,952.74
  5. Step 5: Solve for x
    x = 77,065,604,952.74/395,998.94
  6. Step 6: Final answer
    x = 194,610.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.