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Finding the Fourth Proportional to 965.70, 1,333.44 and 592.88

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Solution

The fourth proportional to 965.70, 1,333.44 and 592.88 is: 818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.70 : 1,333.44 = 592.88 : x
  2. Step 2: Convert to fraction form
    965.70/1,333.44 = 592.88/x
  3. Step 3: Cross multiply
    965.70x = 1,333.44 × 592.88
  4. Step 4: Simplify right side
    965.70x = 790,563.24
  5. Step 5: Solve for x
    x = 790,563.24/965.70
  6. Step 6: Final answer
    x = 818.64

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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.