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Finding the Fourth Proportional to 1,016.86, 1,525.30 and 461.92

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Solution

The fourth proportional to 1,016.86, 1,525.30 and 461.92 is: 692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.86 : 1,525.30 = 461.92 : x
  2. Step 2: Convert to fraction form
    1,016.86/1,525.30 = 461.92/x
  3. Step 3: Cross multiply
    1,016.86x = 1,525.30 × 461.92
  4. Step 4: Simplify right side
    1,016.86x = 704,566.58
  5. Step 5: Solve for x
    x = 704,566.58/1,016.86
  6. Step 6: Final answer
    x = 692.88

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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.