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Finding the Fourth Proportional to 493,005.40, 739,076.10 and 334,720.60

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Solution

The fourth proportional to 493,005.40, 739,076.10 and 334,720.60 is: 501,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,005.40 : 739,076.10 = 334,720.60 : x
  2. Step 2: Convert to fraction form
    493,005.40/739,076.10 = 334,720.60/x
  3. Step 3: Cross multiply
    493,005.40x = 739,076.10 × 334,720.60
  4. Step 4: Simplify right side
    493,005.40x = 247,383,995,637.66
  5. Step 5: Solve for x
    x = 247,383,995,637.66/493,005.40
  6. Step 6: Final answer
    x = 501,787.60

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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.