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Finding the Fourth Proportional to 935.69, 1,291.14 and 795.56

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Solution

The fourth proportional to 935.69, 1,291.14 and 795.56 is: 1,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.69 : 1,291.14 = 795.56 : x
  2. Step 2: Convert to fraction form
    935.69/1,291.14 = 795.56/x
  3. Step 3: Cross multiply
    935.69x = 1,291.14 × 795.56
  4. Step 4: Simplify right side
    935.69x = 1,027,172.88
  5. Step 5: Solve for x
    x = 1,027,172.88/935.69
  6. Step 6: Final answer
    x = 1,097.78

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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.