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Finding the Fourth Proportional to 1,074.66, 1,609.56 and 587.04

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Solution

The fourth proportional to 1,074.66, 1,609.56 and 587.04 is: 879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.66 : 1,609.56 = 587.04 : x
  2. Step 2: Convert to fraction form
    1,074.66/1,609.56 = 587.04/x
  3. Step 3: Cross multiply
    1,074.66x = 1,609.56 × 587.04
  4. Step 4: Simplify right side
    1,074.66x = 944,876.10
  5. Step 5: Solve for x
    x = 944,876.10/1,074.66
  6. Step 6: Final answer
    x = 879.23

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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.