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Finding the Fourth Proportional to 329,132.42, 493,698.64 and 79,814.42

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Solution

The fourth proportional to 329,132.42, 493,698.64 and 79,814.42 is: 119,721.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,132.42 : 493,698.64 = 79,814.42 : x
  2. Step 2: Convert to fraction form
    329,132.42/493,698.64 = 79,814.42/x
  3. Step 3: Cross multiply
    329,132.42x = 493,698.64 × 79,814.42
  4. Step 4: Simplify right side
    329,132.42x = 39,404,270,606.39
  5. Step 5: Solve for x
    x = 39,404,270,606.39/329,132.42
  6. Step 6: Final answer
    x = 119,721.63

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Similar ratio
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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.