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Finding the Fourth Proportional to 489,855.20, 734,098.44 and 264,730.28

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Solution

The fourth proportional to 489,855.20, 734,098.44 and 264,730.28 is: 396,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,855.20 : 734,098.44 = 264,730.28 : x
  2. Step 2: Convert to fraction form
    489,855.20/734,098.44 = 264,730.28/x
  3. Step 3: Cross multiply
    489,855.20x = 734,098.44 × 264,730.28
  4. Step 4: Simplify right side
    489,855.20x = 194,338,085,568.76
  5. Step 5: Solve for x
    x = 194,338,085,568.76/489,855.20
  6. Step 6: Final answer
    x = 396,725.57

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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.