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Finding the Fourth Proportional to 607,787.88, 911,949.12 and 323,411.46

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Solution

The fourth proportional to 607,787.88, 911,949.12 and 323,411.46 is: 485,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,787.88 : 911,949.12 = 323,411.46 : x
  2. Step 2: Convert to fraction form
    607,787.88/911,949.12 = 323,411.46/x
  3. Step 3: Cross multiply
    607,787.88x = 911,949.12 × 323,411.46
  4. Step 4: Simplify right side
    607,787.88x = 294,934,796,344.92
  5. Step 5: Solve for x
    x = 294,934,796,344.92/607,787.88
  6. Step 6: Final answer
    x = 485,259.42

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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.