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Finding the Fourth Proportional to 648,408.20, 973,705.80 and 541,682.60

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Solution

The fourth proportional to 648,408.20, 973,705.80 and 541,682.60 is: 813,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,408.20 : 973,705.80 = 541,682.60 : x
  2. Step 2: Convert to fraction form
    648,408.20/973,705.80 = 541,682.60/x
  3. Step 3: Cross multiply
    648,408.20x = 973,705.80 × 541,682.60
  4. Step 4: Simplify right side
    648,408.20x = 527,439,489,379.08
  5. Step 5: Solve for x
    x = 527,439,489,379.08/648,408.20
  6. Step 6: Final answer
    x = 813,437.41

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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.