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Finding the Fourth Proportional to 1,160.68, 1,739.76 and 582.16

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Solution

The fourth proportional to 1,160.68, 1,739.76 and 582.16 is: 872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.68 : 1,739.76 = 582.16 : x
  2. Step 2: Convert to fraction form
    1,160.68/1,739.76 = 582.16/x
  3. Step 3: Cross multiply
    1,160.68x = 1,739.76 × 582.16
  4. Step 4: Simplify right side
    1,160.68x = 1,012,818.68
  5. Step 5: Solve for x
    x = 1,012,818.68/1,160.68
  6. Step 6: Final answer
    x = 872.61

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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.