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Finding the Fourth Proportional to 429,662.28, 644,711.58 and 192,956.52

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Solution

The fourth proportional to 429,662.28, 644,711.58 and 192,956.52 is: 289,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,662.28 : 644,711.58 = 192,956.52 : x
  2. Step 2: Convert to fraction form
    429,662.28/644,711.58 = 192,956.52/x
  3. Step 3: Cross multiply
    429,662.28x = 644,711.58 × 192,956.52
  4. Step 4: Simplify right side
    429,662.28x = 124,401,302,880.50
  5. Step 5: Solve for x
    x = 124,401,302,880.50/429,662.28
  6. Step 6: Final answer
    x = 289,532.75

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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.