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Finding the Fourth Proportional to 2,233.71, 3,349.83 and 772.68

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Solution

The fourth proportional to 2,233.71, 3,349.83 and 772.68 is: 1,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.71 : 3,349.83 = 772.68 : x
  2. Step 2: Convert to fraction form
    2,233.71/3,349.83 = 772.68/x
  3. Step 3: Cross multiply
    2,233.71x = 3,349.83 × 772.68
  4. Step 4: Simplify right side
    2,233.71x = 2,588,346.64
  5. Step 5: Solve for x
    x = 2,588,346.64/2,233.71
  6. Step 6: Final answer
    x = 1,158.77

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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.