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Finding the Fourth Proportional to 935.58, 1,403.63 and 833.57

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Solution

The fourth proportional to 935.58, 1,403.63 and 833.57 is: 1,250.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.58 : 1,403.63 = 833.57 : x
  2. Step 2: Convert to fraction form
    935.58/1,403.63 = 833.57/x
  3. Step 3: Cross multiply
    935.58x = 1,403.63 × 833.57
  4. Step 4: Simplify right side
    935.58x = 1,170,023.86
  5. Step 5: Solve for x
    x = 1,170,023.86/935.58
  6. Step 6: Final answer
    x = 1,250.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.