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Finding the Fourth Proportional to 1,204.31, 1,662.05 and 732.32

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Solution

The fourth proportional to 1,204.31, 1,662.05 and 732.32 is: 1,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.31 : 1,662.05 = 732.32 : x
  2. Step 2: Convert to fraction form
    1,204.31/1,662.05 = 732.32/x
  3. Step 3: Cross multiply
    1,204.31x = 1,662.05 × 732.32
  4. Step 4: Simplify right side
    1,204.31x = 1,217,152.46
  5. Step 5: Solve for x
    x = 1,217,152.46/1,204.31
  6. Step 6: Final answer
    x = 1,010.66

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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.