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Finding the Fourth Proportional to 1,711.92, 2,568.24 and 616.26

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Solution

The fourth proportional to 1,711.92, 2,568.24 and 616.26 is: 924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.92 : 2,568.24 = 616.26 : x
  2. Step 2: Convert to fraction form
    1,711.92/2,568.24 = 616.26/x
  3. Step 3: Cross multiply
    1,711.92x = 2,568.24 × 616.26
  4. Step 4: Simplify right side
    1,711.92x = 1,582,703.58
  5. Step 5: Solve for x
    x = 1,582,703.58/1,711.92
  6. Step 6: Final answer
    x = 924.52

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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.