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Finding the Fourth Proportional to 1,253.56, 1,879.10 and 594.28

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Solution

The fourth proportional to 1,253.56, 1,879.10 and 594.28 is: 890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.56 : 1,879.10 = 594.28 : x
  2. Step 2: Convert to fraction form
    1,253.56/1,879.10 = 594.28/x
  3. Step 3: Cross multiply
    1,253.56x = 1,879.10 × 594.28
  4. Step 4: Simplify right side
    1,253.56x = 1,116,703.88
  5. Step 5: Solve for x
    x = 1,116,703.88/1,253.56
  6. Step 6: Final answer
    x = 890.83

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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.