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Finding the Fourth Proportional to 965.52, 1,332.44 and 572.88

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Solution

The fourth proportional to 965.52, 1,332.44 and 572.88 is: 790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.52 : 1,332.44 = 572.88 : x
  2. Step 2: Convert to fraction form
    965.52/1,332.44 = 572.88/x
  3. Step 3: Cross multiply
    965.52x = 1,332.44 × 572.88
  4. Step 4: Simplify right side
    965.52x = 763,328.23
  5. Step 5: Solve for x
    x = 763,328.23/965.52
  6. Step 6: Final answer
    x = 790.59

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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.