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Finding the Fourth Proportional to 441,411.20, 662,116.80 and 254,787.20

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Solution

The fourth proportional to 441,411.20, 662,116.80 and 254,787.20 is: 382,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,411.20 : 662,116.80 = 254,787.20 : x
  2. Step 2: Convert to fraction form
    441,411.20/662,116.80 = 254,787.20/x
  3. Step 3: Cross multiply
    441,411.20x = 662,116.80 × 254,787.20
  4. Step 4: Simplify right side
    441,411.20x = 168,698,885,544.96
  5. Step 5: Solve for x
    x = 168,698,885,544.96/441,411.20
  6. Step 6: Final answer
    x = 382,180.80

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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.