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Finding the Fourth Proportional to 329,111.26, 493,666.90 and 79,793.26

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Solution

The fourth proportional to 329,111.26, 493,666.90 and 79,793.26 is: 119,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,111.26 : 493,666.90 = 79,793.26 : x
  2. Step 2: Convert to fraction form
    329,111.26/493,666.90 = 79,793.26/x
  3. Step 3: Cross multiply
    329,111.26x = 493,666.90 × 79,793.26
  4. Step 4: Simplify right side
    329,111.26x = 39,391,291,305.09
  5. Step 5: Solve for x
    x = 39,391,291,305.09/329,111.26
  6. Step 6: Final answer
    x = 119,689.89

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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.