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Finding the Fourth Proportional to 925.44, 1,278.56 and 704.96

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Solution

The fourth proportional to 925.44, 1,278.56 and 704.96 is: 973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.44 : 1,278.56 = 704.96 : x
  2. Step 2: Convert to fraction form
    925.44/1,278.56 = 704.96/x
  3. Step 3: Cross multiply
    925.44x = 1,278.56 × 704.96
  4. Step 4: Simplify right side
    925.44x = 901,333.66
  5. Step 5: Solve for x
    x = 901,333.66/925.44
  6. Step 6: Final answer
    x = 973.95

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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.