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Finding the Fourth Proportional to 395,936.80, 593,905.20 and 115,482.40

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Solution

The fourth proportional to 395,936.80, 593,905.20 and 115,482.40 is: 173,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,936.80 : 593,905.20 = 115,482.40 : x
  2. Step 2: Convert to fraction form
    395,936.80/593,905.20 = 115,482.40/x
  3. Step 3: Cross multiply
    395,936.80x = 593,905.20 × 115,482.40
  4. Step 4: Simplify right side
    395,936.80x = 68,585,597,868.48
  5. Step 5: Solve for x
    x = 68,585,597,868.48/395,936.80
  6. Step 6: Final answer
    x = 173,223.60

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Similar ratio
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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.