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Finding the Fourth Proportional to 1,167.63, 1,751.94 and 437.11

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Solution

The fourth proportional to 1,167.63, 1,751.94 and 437.11 is: 655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.63 : 1,751.94 = 437.11 : x
  2. Step 2: Convert to fraction form
    1,167.63/1,751.94 = 437.11/x
  3. Step 3: Cross multiply
    1,167.63x = 1,751.94 × 437.11
  4. Step 4: Simplify right side
    1,167.63x = 765,790.49
  5. Step 5: Solve for x
    x = 765,790.49/1,167.63
  6. Step 6: Final answer
    x = 655.85

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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.