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Finding the Fourth Proportional to 545,668.01, 814,234.45 and 488,930.14

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Solution

The fourth proportional to 545,668.01, 814,234.45 and 488,930.14 is: 729,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,668.01 : 814,234.45 = 488,930.14 : x
  2. Step 2: Convert to fraction form
    545,668.01/814,234.45 = 488,930.14/x
  3. Step 3: Cross multiply
    545,668.01x = 814,234.45 × 488,930.14
  4. Step 4: Simplify right side
    545,668.01x = 398,103,757,115.50
  5. Step 5: Solve for x
    x = 398,103,757,115.50/545,668.01
  6. Step 6: Final answer
    x = 729,571.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.