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Finding the Fourth Proportional to 911,408.76, 1,367,107.92 and 371,662.92

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Solution

The fourth proportional to 911,408.76, 1,367,107.92 and 371,662.92 is: 557,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,408.76 : 1,367,107.92 = 371,662.92 : x
  2. Step 2: Convert to fraction form
    911,408.76/1,367,107.92 = 371,662.92/x
  3. Step 3: Cross multiply
    911,408.76x = 1,367,107.92 × 371,662.92
  4. Step 4: Simplify right side
    911,408.76x = 508,103,321,502.33
  5. Step 5: Solve for x
    x = 508,103,321,502.33/911,408.76
  6. Step 6: Final answer
    x = 557,492.25

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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.