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Finding the Fourth Proportional to 349,872.60, 524,808.90 and 329,136.60

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Solution

The fourth proportional to 349,872.60, 524,808.90 and 329,136.60 is: 493,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,872.60 : 524,808.90 = 329,136.60 : x
  2. Step 2: Convert to fraction form
    349,872.60/524,808.90 = 329,136.60/x
  3. Step 3: Cross multiply
    349,872.60x = 524,808.90 × 329,136.60
  4. Step 4: Simplify right side
    349,872.60x = 172,733,816,995.74
  5. Step 5: Solve for x
    x = 172,733,816,995.74/349,872.60
  6. Step 6: Final answer
    x = 493,704.90

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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.