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Finding the Fourth Proportional to 572,732.70, 790,457.31 and 412,119.42

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Solution

The fourth proportional to 572,732.70, 790,457.31 and 412,119.42 is: 568,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,732.70 : 790,457.31 = 412,119.42 : x
  2. Step 2: Convert to fraction form
    572,732.70/790,457.31 = 412,119.42/x
  3. Step 3: Cross multiply
    572,732.70x = 790,457.31 × 412,119.42
  4. Step 4: Simplify right side
    572,732.70x = 325,762,808,131.96
  5. Step 5: Solve for x
    x = 325,762,808,131.96/572,732.70
  6. Step 6: Final answer
    x = 568,786.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.