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Finding the Fourth Proportional to 348,050.80, 522,076.20 and 306,578.80

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Solution

The fourth proportional to 348,050.80, 522,076.20 and 306,578.80 is: 459,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,050.80 : 522,076.20 = 306,578.80 : x
  2. Step 2: Convert to fraction form
    348,050.80/522,076.20 = 306,578.80/x
  3. Step 3: Cross multiply
    348,050.80x = 522,076.20 × 306,578.80
  4. Step 4: Simplify right side
    348,050.80x = 160,057,494,904.56
  5. Step 5: Solve for x
    x = 160,057,494,904.56/348,050.80
  6. Step 6: Final answer
    x = 459,868.20

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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.