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Finding the Fourth Proportional to 925.87, 1,277.73 and 506.24

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Solution

The fourth proportional to 925.87, 1,277.73 and 506.24 is: 698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.87 : 1,277.73 = 506.24 : x
  2. Step 2: Convert to fraction form
    925.87/1,277.73 = 506.24/x
  3. Step 3: Cross multiply
    925.87x = 1,277.73 × 506.24
  4. Step 4: Simplify right side
    925.87x = 646,838.04
  5. Step 5: Solve for x
    x = 646,838.04/925.87
  6. Step 6: Final answer
    x = 698.63

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1.5x scale

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.