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Finding the Fourth Proportional to 1,155.88, 1,732.03 and 462.24

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Solution

The fourth proportional to 1,155.88, 1,732.03 and 462.24 is: 692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.88 : 1,732.03 = 462.24 : x
  2. Step 2: Convert to fraction form
    1,155.88/1,732.03 = 462.24/x
  3. Step 3: Cross multiply
    1,155.88x = 1,732.03 × 462.24
  4. Step 4: Simplify right side
    1,155.88x = 800,613.55
  5. Step 5: Solve for x
    x = 800,613.55/1,155.88
  6. Step 6: Final answer
    x = 692.64

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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.