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Finding the Fourth Proportional to 633,863.98, 874,739.19 and 347,377.96

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Solution

The fourth proportional to 633,863.98, 874,739.19 and 347,377.96 is: 479,385.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,863.98 : 874,739.19 = 347,377.96 : x
  2. Step 2: Convert to fraction form
    633,863.98/874,739.19 = 347,377.96/x
  3. Step 3: Cross multiply
    633,863.98x = 874,739.19 × 347,377.96
  4. Step 4: Simplify right side
    633,863.98x = 303,865,115,354.25
  5. Step 5: Solve for x
    x = 303,865,115,354.25/633,863.98
  6. Step 6: Final answer
    x = 479,385.36

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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.