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Finding the Fourth Proportional to 1,076.08, 1,612.84 and 589.56

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Solution

The fourth proportional to 1,076.08, 1,612.84 and 589.56 is: 883.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.08 : 1,612.84 = 589.56 : x
  2. Step 2: Convert to fraction form
    1,076.08/1,612.84 = 589.56/x
  3. Step 3: Cross multiply
    1,076.08x = 1,612.84 × 589.56
  4. Step 4: Simplify right side
    1,076.08x = 950,865.95
  5. Step 5: Solve for x
    x = 950,865.95/1,076.08
  6. Step 6: Final answer
    x = 883.64

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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.