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Finding the Fourth Proportional to 484,443.40, 726,578.70 and 306,632.20

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Solution

The fourth proportional to 484,443.40, 726,578.70 and 306,632.20 is: 459,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,443.40 : 726,578.70 = 306,632.20 : x
  2. Step 2: Convert to fraction form
    484,443.40/726,578.70 = 306,632.20/x
  3. Step 3: Cross multiply
    484,443.40x = 726,578.70 × 306,632.20
  4. Step 4: Simplify right side
    484,443.40x = 222,792,425,254.14
  5. Step 5: Solve for x
    x = 222,792,425,254.14/484,443.40
  6. Step 6: Final answer
    x = 459,893.61

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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.