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Finding the Fourth Proportional to 1,588.88, 2,381.84 and 614.96

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Solution

The fourth proportional to 1,588.88, 2,381.84 and 614.96 is: 921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.88 : 2,381.84 = 614.96 : x
  2. Step 2: Convert to fraction form
    1,588.88/2,381.84 = 614.96/x
  3. Step 3: Cross multiply
    1,588.88x = 2,381.84 × 614.96
  4. Step 4: Simplify right side
    1,588.88x = 1,464,736.33
  5. Step 5: Solve for x
    x = 1,464,736.33/1,588.88
  6. Step 6: Final answer
    x = 921.87

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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.