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Finding the Fourth Proportional to 925.69, 1,277.36 and 552.59

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Solution

The fourth proportional to 925.69, 1,277.36 and 552.59 is: 762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.69 : 1,277.36 = 552.59 : x
  2. Step 2: Convert to fraction form
    925.69/1,277.36 = 552.59/x
  3. Step 3: Cross multiply
    925.69x = 1,277.36 × 552.59
  4. Step 4: Simplify right side
    925.69x = 705,853.60
  5. Step 5: Solve for x
    x = 705,853.60/925.69
  6. Step 6: Final answer
    x = 762.52

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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.