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Finding the Fourth Proportional to 1,295.98, 1,944.12 and 474.64

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Solution

The fourth proportional to 1,295.98, 1,944.12 and 474.64 is: 712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.98 : 1,944.12 = 474.64 : x
  2. Step 2: Convert to fraction form
    1,295.98/1,944.12 = 474.64/x
  3. Step 3: Cross multiply
    1,295.98x = 1,944.12 × 474.64
  4. Step 4: Simplify right side
    1,295.98x = 922,757.12
  5. Step 5: Solve for x
    x = 922,757.12/1,295.98
  6. Step 6: Final answer
    x = 712.01

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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.