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Finding the Fourth Proportional to 443,694.40, 612,423.88 and 262,469.34

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Solution

The fourth proportional to 443,694.40, 612,423.88 and 262,469.34 is: 362,281.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,694.40 : 612,423.88 = 262,469.34 : x
  2. Step 2: Convert to fraction form
    443,694.40/612,423.88 = 262,469.34/x
  3. Step 3: Cross multiply
    443,694.40x = 612,423.88 × 262,469.34
  4. Step 4: Simplify right side
    443,694.40x = 160,742,491,583.84
  5. Step 5: Solve for x
    x = 160,742,491,583.84/443,694.40
  6. Step 6: Final answer
    x = 362,281.99

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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.