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Finding the Fourth Proportional to 591,638.94, 888,245.96 and 400,156.61

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Solution

The fourth proportional to 591,638.94, 888,245.96 and 400,156.61 is: 600,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,638.94 : 888,245.96 = 400,156.61 : x
  2. Step 2: Convert to fraction form
    591,638.94/888,245.96 = 400,156.61/x
  3. Step 3: Cross multiply
    591,638.94x = 888,245.96 × 400,156.61
  4. Step 4: Simplify right side
    591,638.94x = 355,437,495,420.80
  5. Step 5: Solve for x
    x = 355,437,495,420.80/591,638.94
  6. Step 6: Final answer
    x = 600,767.58

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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.