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Finding the Fourth Proportional to 633,998.25, 874,917.79 and 347,520.29

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Solution

The fourth proportional to 633,998.25, 874,917.79 and 347,520.29 is: 479,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,998.25 : 874,917.79 = 347,520.29 : x
  2. Step 2: Convert to fraction form
    633,998.25/874,917.79 = 347,520.29/x
  3. Step 3: Cross multiply
    633,998.25x = 874,917.79 × 347,520.29
  4. Step 4: Simplify right side
    633,998.25x = 304,051,678,863.57
  5. Step 5: Solve for x
    x = 304,051,678,863.57/633,998.25
  6. Step 6: Final answer
    x = 479,578.10

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1.5x scale

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.