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Finding the Fourth Proportional to 1,059.68, 1,462.31 and 587.58

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Solution

The fourth proportional to 1,059.68, 1,462.31 and 587.58 is: 810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.68 : 1,462.31 = 587.58 : x
  2. Step 2: Convert to fraction form
    1,059.68/1,462.31 = 587.58/x
  3. Step 3: Cross multiply
    1,059.68x = 1,462.31 × 587.58
  4. Step 4: Simplify right side
    1,059.68x = 859,213.86
  5. Step 5: Solve for x
    x = 859,213.86/1,059.68
  6. Step 6: Final answer
    x = 810.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.