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Finding the Fourth Proportional to 925.73, 1,277.06 and 552.45

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Solution

The fourth proportional to 925.73, 1,277.06 and 552.45 is: 762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.73 : 1,277.06 = 552.45 : x
  2. Step 2: Convert to fraction form
    925.73/1,277.06 = 552.45/x
  3. Step 3: Cross multiply
    925.73x = 1,277.06 × 552.45
  4. Step 4: Simplify right side
    925.73x = 705,509.03
  5. Step 5: Solve for x
    x = 705,509.03/925.73
  6. Step 6: Final answer
    x = 762.12

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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.