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Finding the Fourth Proportional to 489,479.94, 734,255.28 and 204,884.28

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Solution

The fourth proportional to 489,479.94, 734,255.28 and 204,884.28 is: 307,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,479.94 : 734,255.28 = 204,884.28 : x
  2. Step 2: Convert to fraction form
    489,479.94/734,255.28 = 204,884.28/x
  3. Step 3: Cross multiply
    489,479.94x = 734,255.28 × 204,884.28
  4. Step 4: Simplify right side
    489,479.94x = 150,437,364,379.00
  5. Step 5: Solve for x
    x = 150,437,364,379.00/489,479.94
  6. Step 6: Final answer
    x = 307,341.23

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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.