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Finding the Fourth Proportional to 1,175.52, 1,762.04 and 481.88

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Solution

The fourth proportional to 1,175.52, 1,762.04 and 481.88 is: 722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.52 : 1,762.04 = 481.88 : x
  2. Step 2: Convert to fraction form
    1,175.52/1,762.04 = 481.88/x
  3. Step 3: Cross multiply
    1,175.52x = 1,762.04 × 481.88
  4. Step 4: Simplify right side
    1,175.52x = 849,091.84
  5. Step 5: Solve for x
    x = 849,091.84/1,175.52
  6. Step 6: Final answer
    x = 722.31

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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.