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Finding the Fourth Proportional to 966.62, 1,334.06 and 705.26

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Solution

The fourth proportional to 966.62, 1,334.06 and 705.26 is: 973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.62 : 1,334.06 = 705.26 : x
  2. Step 2: Convert to fraction form
    966.62/1,334.06 = 705.26/x
  3. Step 3: Cross multiply
    966.62x = 1,334.06 × 705.26
  4. Step 4: Simplify right side
    966.62x = 940,848.96
  5. Step 5: Solve for x
    x = 940,848.96/966.62
  6. Step 6: Final answer
    x = 973.34

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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.