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Finding the Fourth Proportional to 395,814.40, 593,721.60 and 237,961.60

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Solution

The fourth proportional to 395,814.40, 593,721.60 and 237,961.60 is: 356,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,814.40 : 593,721.60 = 237,961.60 : x
  2. Step 2: Convert to fraction form
    395,814.40/593,721.60 = 237,961.60/x
  3. Step 3: Cross multiply
    395,814.40x = 593,721.60 × 237,961.60
  4. Step 4: Simplify right side
    395,814.40x = 141,282,941,890.56
  5. Step 5: Solve for x
    x = 141,282,941,890.56/395,814.40
  6. Step 6: Final answer
    x = 356,942.40

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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.