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Finding the Fourth Proportional to 576,784.22, 863,472.44 and 426,023.42

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Solution

The fourth proportional to 576,784.22, 863,472.44 and 426,023.42 is: 637,776.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,784.22 : 863,472.44 = 426,023.42 : x
  2. Step 2: Convert to fraction form
    576,784.22/863,472.44 = 426,023.42/x
  3. Step 3: Cross multiply
    576,784.22x = 863,472.44 × 426,023.42
  4. Step 4: Simplify right side
    576,784.22x = 367,859,481,964.55
  5. Step 5: Solve for x
    x = 367,859,481,964.55/576,784.22
  6. Step 6: Final answer
    x = 637,776.61

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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.