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Finding the Fourth Proportional to 866.35, 1,195.53 and 534.81

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Solution

The fourth proportional to 866.35, 1,195.53 and 534.81 is: 738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.35 : 1,195.53 = 534.81 : x
  2. Step 2: Convert to fraction form
    866.35/1,195.53 = 534.81/x
  3. Step 3: Cross multiply
    866.35x = 1,195.53 × 534.81
  4. Step 4: Simplify right side
    866.35x = 639,378.73
  5. Step 5: Solve for x
    x = 639,378.73/866.35
  6. Step 6: Final answer
    x = 738.01

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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.