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Finding the Fourth Proportional to 775.94, 1,164.03 and 483.22

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Solution

The fourth proportional to 775.94, 1,164.03 and 483.22 is: 724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.94 : 1,164.03 = 483.22 : x
  2. Step 2: Convert to fraction form
    775.94/1,164.03 = 483.22/x
  3. Step 3: Cross multiply
    775.94x = 1,164.03 × 483.22
  4. Step 4: Simplify right side
    775.94x = 562,476.76
  5. Step 5: Solve for x
    x = 562,476.76/775.94
  6. Step 6: Final answer
    x = 724.90

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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.