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Finding the Fourth Proportional to 1,652.18, 2,478.66 and 482.22

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Solution

The fourth proportional to 1,652.18, 2,478.66 and 482.22 is: 723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.18 : 2,478.66 = 482.22 : x
  2. Step 2: Convert to fraction form
    1,652.18/2,478.66 = 482.22/x
  3. Step 3: Cross multiply
    1,652.18x = 2,478.66 × 482.22
  4. Step 4: Simplify right side
    1,652.18x = 1,195,259.43
  5. Step 5: Solve for x
    x = 1,195,259.43/1,652.18
  6. Step 6: Final answer
    x = 723.44

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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.