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Finding the Fourth Proportional to 1,060.52, 1,590.96 and 675.68

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Solution

The fourth proportional to 1,060.52, 1,590.96 and 675.68 is: 1,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.52 : 1,590.96 = 675.68 : x
  2. Step 2: Convert to fraction form
    1,060.52/1,590.96 = 675.68/x
  3. Step 3: Cross multiply
    1,060.52x = 1,590.96 × 675.68
  4. Step 4: Simplify right side
    1,060.52x = 1,074,979.85
  5. Step 5: Solve for x
    x = 1,074,979.85/1,060.52
  6. Step 6: Final answer
    x = 1,013.63

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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.