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Finding the Fourth Proportional to 704.96, 1,058.20 and 294.36

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Solution

The fourth proportional to 704.96, 1,058.20 and 294.36 is: 441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.96 : 1,058.20 = 294.36 : x
  2. Step 2: Convert to fraction form
    704.96/1,058.20 = 294.36/x
  3. Step 3: Cross multiply
    704.96x = 1,058.20 × 294.36
  4. Step 4: Simplify right side
    704.96x = 311,491.75
  5. Step 5: Solve for x
    x = 311,491.75/704.96
  6. Step 6: Final answer
    x = 441.86

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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.