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Finding the Fourth Proportional to 1,295.87, 1,944 and 474.03

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Solution

The fourth proportional to 1,295.87, 1,944 and 474.03 is: 711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.87 : 1,944 = 474.03 : x
  2. Step 2: Convert to fraction form
    1,295.87/1,944 = 474.03/x
  3. Step 3: Cross multiply
    1,295.87x = 1,944 × 474.03
  4. Step 4: Simplify right side
    1,295.87x = 921,514.32
  5. Step 5: Solve for x
    x = 921,514.32/1,295.87
  6. Step 6: Final answer
    x = 711.12

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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.