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Finding the Fourth Proportional to 701,690.45, 968,331.49 and 395,765.87

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Solution

The fourth proportional to 701,690.45, 968,331.49 and 395,765.87 is: 546,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,690.45 : 968,331.49 = 395,765.87 : x
  2. Step 2: Convert to fraction form
    701,690.45/968,331.49 = 395,765.87/x
  3. Step 3: Cross multiply
    701,690.45x = 968,331.49 × 395,765.87
  4. Step 4: Simplify right side
    701,690.45x = 383,232,548,757.17
  5. Step 5: Solve for x
    x = 383,232,548,757.17/701,690.45
  6. Step 6: Final answer
    x = 546,156.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.