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Finding the Fourth Proportional to 443,861.20, 665,704.92 and 369,459.44

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Solution

The fourth proportional to 443,861.20, 665,704.92 and 369,459.44 is: 554,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,861.20 : 665,704.92 = 369,459.44 : x
  2. Step 2: Convert to fraction form
    443,861.20/665,704.92 = 369,459.44/x
  3. Step 3: Cross multiply
    443,861.20x = 665,704.92 × 369,459.44
  4. Step 4: Simplify right side
    443,861.20x = 245,950,966,948.45
  5. Step 5: Solve for x
    x = 245,950,966,948.45/443,861.20
  6. Step 6: Final answer
    x = 554,116.84

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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.