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Finding the Fourth Proportional to 568,276.40, 851,831.40 and 331,497.20

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Solution

The fourth proportional to 568,276.40, 851,831.40 and 331,497.20 is: 496,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,276.40 : 851,831.40 = 331,497.20 : x
  2. Step 2: Convert to fraction form
    568,276.40/851,831.40 = 331,497.20/x
  3. Step 3: Cross multiply
    568,276.40x = 851,831.40 × 331,497.20
  4. Step 4: Simplify right side
    568,276.40x = 282,379,723,972.08
  5. Step 5: Solve for x
    x = 282,379,723,972.08/568,276.40
  6. Step 6: Final answer
    x = 496,905.60

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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.