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Finding the Fourth Proportional to 603,142.80, 903,531.56 and 349,891.44

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Solution

The fourth proportional to 603,142.80, 903,531.56 and 349,891.44 is: 524,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,142.80 : 903,531.56 = 349,891.44 : x
  2. Step 2: Convert to fraction form
    603,142.80/903,531.56 = 349,891.44/x
  3. Step 3: Cross multiply
    603,142.80x = 903,531.56 × 349,891.44
  4. Step 4: Simplify right side
    603,142.80x = 316,137,958,613.85
  5. Step 5: Solve for x
    x = 316,137,958,613.85/603,142.80
  6. Step 6: Final answer
    x = 524,151.09

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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.