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Finding the Fourth Proportional to 1,726.94, 2,590.50 and 494.54

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Solution

The fourth proportional to 1,726.94, 2,590.50 and 494.54 is: 741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.94 : 2,590.50 = 494.54 : x
  2. Step 2: Convert to fraction form
    1,726.94/2,590.50 = 494.54/x
  3. Step 3: Cross multiply
    1,726.94x = 2,590.50 × 494.54
  4. Step 4: Simplify right side
    1,726.94x = 1,281,092.92
  5. Step 5: Solve for x
    x = 1,281,092.92/1,726.94
  6. Step 6: Final answer
    x = 741.83

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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.