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Finding the Fourth Proportional to 573,674.49, 860,123.49 and 321,129.30

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Solution

The fourth proportional to 573,674.49, 860,123.49 and 321,129.30 is: 481,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,674.49 : 860,123.49 = 321,129.30 : x
  2. Step 2: Convert to fraction form
    573,674.49/860,123.49 = 321,129.30/x
  3. Step 3: Cross multiply
    573,674.49x = 860,123.49 × 321,129.30
  4. Step 4: Simplify right side
    573,674.49x = 276,210,854,257.26
  5. Step 5: Solve for x
    x = 276,210,854,257.26/573,674.49
  6. Step 6: Final answer
    x = 481,476.62

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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.