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Finding the Fourth Proportional to 1,093.01, 1,631.12 and 976.24

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Solution

The fourth proportional to 1,093.01, 1,631.12 and 976.24 is: 1,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.01 : 1,631.12 = 976.24 : x
  2. Step 2: Convert to fraction form
    1,093.01/1,631.12 = 976.24/x
  3. Step 3: Cross multiply
    1,093.01x = 1,631.12 × 976.24
  4. Step 4: Simplify right side
    1,093.01x = 1,592,362.95
  5. Step 5: Solve for x
    x = 1,592,362.95/1,093.01
  6. Step 6: Final answer
    x = 1,456.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.