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Finding the Fourth Proportional to 1,057.26, 1,460.08 and 726.52

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Solution

The fourth proportional to 1,057.26, 1,460.08 and 726.52 is: 1,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.26 : 1,460.08 = 726.52 : x
  2. Step 2: Convert to fraction form
    1,057.26/1,460.08 = 726.52/x
  3. Step 3: Cross multiply
    1,057.26x = 1,460.08 × 726.52
  4. Step 4: Simplify right side
    1,057.26x = 1,060,777.32
  5. Step 5: Solve for x
    x = 1,060,777.32/1,057.26
  6. Step 6: Final answer
    x = 1,003.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.