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Finding the Fourth Proportional to 2,355.38, 3,533.27 and 624

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Solution

The fourth proportional to 2,355.38, 3,533.27 and 624 is: 936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.38 : 3,533.27 = 624 : x
  2. Step 2: Convert to fraction form
    2,355.38/3,533.27 = 624/x
  3. Step 3: Cross multiply
    2,355.38x = 3,533.27 × 624
  4. Step 4: Simplify right side
    2,355.38x = 2,204,760.48
  5. Step 5: Solve for x
    x = 2,204,760.48/2,355.38
  6. Step 6: Final answer
    x = 936.05

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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.