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Finding the Fourth Proportional to 493,903.50, 739,908.60 and 293,617.50

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Solution

The fourth proportional to 493,903.50, 739,908.60 and 293,617.50 is: 439,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,903.50 : 739,908.60 = 293,617.50 : x
  2. Step 2: Convert to fraction form
    493,903.50/739,908.60 = 293,617.50/x
  3. Step 3: Cross multiply
    493,903.50x = 739,908.60 × 293,617.50
  4. Step 4: Simplify right side
    493,903.50x = 217,250,113,360.50
  5. Step 5: Solve for x
    x = 217,250,113,360.50/493,903.50
  6. Step 6: Final answer
    x = 439,863.48

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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.