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Finding the Fourth Proportional to 329,092.13, 493,638.20 and 79,774.13

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Solution

The fourth proportional to 329,092.13, 493,638.20 and 79,774.13 is: 119,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,092.13 : 493,638.20 = 79,774.13 : x
  2. Step 2: Convert to fraction form
    329,092.13/493,638.20 = 79,774.13/x
  3. Step 3: Cross multiply
    329,092.13x = 493,638.20 × 79,774.13
  4. Step 4: Simplify right side
    329,092.13x = 39,379,557,939.77
  5. Step 5: Solve for x
    x = 39,379,557,939.77/329,092.13
  6. Step 6: Final answer
    x = 119,661.20

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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.