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Finding the Fourth Proportional to 2,355.76, 3,533.64 and 624.32

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Solution

The fourth proportional to 2,355.76, 3,533.64 and 624.32 is: 936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.76 : 3,533.64 = 624.32 : x
  2. Step 2: Convert to fraction form
    2,355.76/3,533.64 = 624.32/x
  3. Step 3: Cross multiply
    2,355.76x = 3,533.64 × 624.32
  4. Step 4: Simplify right side
    2,355.76x = 2,206,122.12
  5. Step 5: Solve for x
    x = 2,206,122.12/2,355.76
  6. Step 6: Final answer
    x = 936.48

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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.