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Finding the Fourth Proportional to 2,356.64, 3,535.20 and 625.44

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Solution

The fourth proportional to 2,356.64, 3,535.20 and 625.44 is: 938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.64 : 3,535.20 = 625.44 : x
  2. Step 2: Convert to fraction form
    2,356.64/3,535.20 = 625.44/x
  3. Step 3: Cross multiply
    2,356.64x = 3,535.20 × 625.44
  4. Step 4: Simplify right side
    2,356.64x = 2,211,055.49
  5. Step 5: Solve for x
    x = 2,211,055.49/2,356.64
  6. Step 6: Final answer
    x = 938.22

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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.