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Finding the Fourth Proportional to 395,935.20, 593,902.80 and 185,983.20

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Solution

The fourth proportional to 395,935.20, 593,902.80 and 185,983.20 is: 278,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,935.20 : 593,902.80 = 185,983.20 : x
  2. Step 2: Convert to fraction form
    395,935.20/593,902.80 = 185,983.20/x
  3. Step 3: Cross multiply
    395,935.20x = 593,902.80 × 185,983.20
  4. Step 4: Simplify right side
    395,935.20x = 110,455,943,232.96
  5. Step 5: Solve for x
    x = 110,455,943,232.96/395,935.20
  6. Step 6: Final answer
    x = 278,974.80

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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.