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Finding the Fourth Proportional to 922,414.10, 1,383,880.35 and 449,114.90

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Solution

The fourth proportional to 922,414.10, 1,383,880.35 and 449,114.90 is: 673,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,414.10 : 1,383,880.35 = 449,114.90 : x
  2. Step 2: Convert to fraction form
    922,414.10/1,383,880.35 = 449,114.90/x
  3. Step 3: Cross multiply
    922,414.10x = 1,383,880.35 × 449,114.90
  4. Step 4: Simplify right side
    922,414.10x = 621,521,285,002.22
  5. Step 5: Solve for x
    x = 621,521,285,002.22/922,414.10
  6. Step 6: Final answer
    x = 673,798.55

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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.