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Finding the Fourth Proportional to 1,224.01, 1,836.44 and 358.45

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Solution

The fourth proportional to 1,224.01, 1,836.44 and 358.45 is: 537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.01 : 1,836.44 = 358.45 : x
  2. Step 2: Convert to fraction form
    1,224.01/1,836.44 = 358.45/x
  3. Step 3: Cross multiply
    1,224.01x = 1,836.44 × 358.45
  4. Step 4: Simplify right side
    1,224.01x = 658,271.92
  5. Step 5: Solve for x
    x = 658,271.92/1,224.01
  6. Step 6: Final answer
    x = 537.80

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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.