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Finding the Fourth Proportional to 1,175.63, 1,763.65 and 482.68

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Solution

The fourth proportional to 1,175.63, 1,763.65 and 482.68 is: 724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.63 : 1,763.65 = 482.68 : x
  2. Step 2: Convert to fraction form
    1,175.63/1,763.65 = 482.68/x
  3. Step 3: Cross multiply
    1,175.63x = 1,763.65 × 482.68
  4. Step 4: Simplify right side
    1,175.63x = 851,269.76
  5. Step 5: Solve for x
    x = 851,269.76/1,175.63
  6. Step 6: Final answer
    x = 724.10

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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.