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Finding the Fourth Proportional to 962.54, 1,443.89 and 705.73

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Solution

The fourth proportional to 962.54, 1,443.89 and 705.73 is: 1,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.54 : 1,443.89 = 705.73 : x
  2. Step 2: Convert to fraction form
    962.54/1,443.89 = 705.73/x
  3. Step 3: Cross multiply
    962.54x = 1,443.89 × 705.73
  4. Step 4: Simplify right side
    962.54x = 1,018,996.49
  5. Step 5: Solve for x
    x = 1,018,996.49/962.54
  6. Step 6: Final answer
    x = 1,058.65

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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.