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Finding the Fourth Proportional to 1,184.46, 1,776.49 and 443.88

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Solution

The fourth proportional to 1,184.46, 1,776.49 and 443.88 is: 665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.46 : 1,776.49 = 443.88 : x
  2. Step 2: Convert to fraction form
    1,184.46/1,776.49 = 443.88/x
  3. Step 3: Cross multiply
    1,184.46x = 1,776.49 × 443.88
  4. Step 4: Simplify right side
    1,184.46x = 788,548.38
  5. Step 5: Solve for x
    x = 788,548.38/1,184.46
  6. Step 6: Final answer
    x = 665.75

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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.