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Finding the Fourth Proportional to 471,644.40, 707,466.60 and 329,926.80

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Solution

The fourth proportional to 471,644.40, 707,466.60 and 329,926.80 is: 494,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,644.40 : 707,466.60 = 329,926.80 : x
  2. Step 2: Convert to fraction form
    471,644.40/707,466.60 = 329,926.80/x
  3. Step 3: Cross multiply
    471,644.40x = 707,466.60 × 329,926.80
  4. Step 4: Simplify right side
    471,644.40x = 233,412,191,444.88
  5. Step 5: Solve for x
    x = 233,412,191,444.88/471,644.40
  6. Step 6: Final answer
    x = 494,890.20

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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.