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Finding the Fourth Proportional to 1,617.08, 2,425.94 and 591.16

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Solution

The fourth proportional to 1,617.08, 2,425.94 and 591.16 is: 886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.08 : 2,425.94 = 591.16 : x
  2. Step 2: Convert to fraction form
    1,617.08/2,425.94 = 591.16/x
  3. Step 3: Cross multiply
    1,617.08x = 2,425.94 × 591.16
  4. Step 4: Simplify right side
    1,617.08x = 1,434,118.69
  5. Step 5: Solve for x
    x = 1,434,118.69/1,617.08
  6. Step 6: Final answer
    x = 886.86

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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.