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Finding the Fourth Proportional to 1,225.92, 1,838.94 and 532.14

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Solution

The fourth proportional to 1,225.92, 1,838.94 and 532.14 is: 798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.92 : 1,838.94 = 532.14 : x
  2. Step 2: Convert to fraction form
    1,225.92/1,838.94 = 532.14/x
  3. Step 3: Cross multiply
    1,225.92x = 1,838.94 × 532.14
  4. Step 4: Simplify right side
    1,225.92x = 978,573.53
  5. Step 5: Solve for x
    x = 978,573.53/1,225.92
  6. Step 6: Final answer
    x = 798.24

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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.