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Finding the Fourth Proportional to 1,296.69, 1,944.00 and 474.51

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Solution

The fourth proportional to 1,296.69, 1,944.00 and 474.51 is: 711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.69 : 1,944.00 = 474.51 : x
  2. Step 2: Convert to fraction form
    1,296.69/1,944.00 = 474.51/x
  3. Step 3: Cross multiply
    1,296.69x = 1,944.00 × 474.51
  4. Step 4: Simplify right side
    1,296.69x = 922,438.91
  5. Step 5: Solve for x
    x = 922,438.91/1,296.69
  6. Step 6: Final answer
    x = 711.38

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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.