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Finding the Fourth Proportional to 451,137.88, 623,391.42 and 429,274.36

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Solution

The fourth proportional to 451,137.88, 623,391.42 and 429,274.36 is: 593,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,137.88 : 623,391.42 = 429,274.36 : x
  2. Step 2: Convert to fraction form
    451,137.88/623,391.42 = 429,274.36/x
  3. Step 3: Cross multiply
    451,137.88x = 623,391.42 × 429,274.36
  4. Step 4: Simplify right side
    451,137.88x = 267,605,952,849.99
  5. Step 5: Solve for x
    x = 267,605,952,849.99/451,137.88
  6. Step 6: Final answer
    x = 593,179.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.