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Finding the Fourth Proportional to 1,167.58, 1,751.19 and 436.96

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Solution

The fourth proportional to 1,167.58, 1,751.19 and 436.96 is: 655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.58 : 1,751.19 = 436.96 : x
  2. Step 2: Convert to fraction form
    1,167.58/1,751.19 = 436.96/x
  3. Step 3: Cross multiply
    1,167.58x = 1,751.19 × 436.96
  4. Step 4: Simplify right side
    1,167.58x = 765,199.98
  5. Step 5: Solve for x
    x = 765,199.98/1,167.58
  6. Step 6: Final answer
    x = 655.37

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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.