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Finding the Fourth Proportional to 964.56, 1,446.84 and 707.59

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Solution

The fourth proportional to 964.56, 1,446.84 and 707.59 is: 1,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.56 : 1,446.84 = 707.59 : x
  2. Step 2: Convert to fraction form
    964.56/1,446.84 = 707.59/x
  3. Step 3: Cross multiply
    964.56x = 1,446.84 × 707.59
  4. Step 4: Simplify right side
    964.56x = 1,023,761.20
  5. Step 5: Solve for x
    x = 1,023,761.20/964.56
  6. Step 6: Final answer
    x = 1,061.38

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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.