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Finding the Fourth Proportional to 1,588.59, 2,379.63 and 937.75

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Solution

The fourth proportional to 1,588.59, 2,379.63 and 937.75 is: 1,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.59 : 2,379.63 = 937.75 : x
  2. Step 2: Convert to fraction form
    1,588.59/2,379.63 = 937.75/x
  3. Step 3: Cross multiply
    1,588.59x = 2,379.63 × 937.75
  4. Step 4: Simplify right side
    1,588.59x = 2,231,498.03
  5. Step 5: Solve for x
    x = 2,231,498.03/1,588.59
  6. Step 6: Final answer
    x = 1,404.70

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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.