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Finding the Fourth Proportional to 425,650.84, 638,472.42 and 162,994.84

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Solution

The fourth proportional to 425,650.84, 638,472.42 and 162,994.84 is: 244,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,650.84 : 638,472.42 = 162,994.84 : x
  2. Step 2: Convert to fraction form
    425,650.84/638,472.42 = 162,994.84/x
  3. Step 3: Cross multiply
    425,650.84x = 638,472.42 × 162,994.84
  4. Step 4: Simplify right side
    425,650.84x = 104,067,709,942.31
  5. Step 5: Solve for x
    x = 104,067,709,942.31/425,650.84
  6. Step 6: Final answer
    x = 244,490.79

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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.