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Finding the Fourth Proportional to 472,099.05, 708,443.82 and 191,616.30

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Solution

The fourth proportional to 472,099.05, 708,443.82 and 191,616.30 is: 287,544.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,099.05 : 708,443.82 = 191,616.30 : x
  2. Step 2: Convert to fraction form
    472,099.05/708,443.82 = 191,616.30/x
  3. Step 3: Cross multiply
    472,099.05x = 708,443.82 × 191,616.30
  4. Step 4: Simplify right side
    472,099.05x = 135,749,383,546.27
  5. Step 5: Solve for x
    x = 135,749,383,546.27/472,099.05
  6. Step 6: Final answer
    x = 287,544.28

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1.5x scale

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.