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Finding the Fourth Proportional to 546,871.70, 820,793.55 and 321,950.90

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Solution

The fourth proportional to 546,871.70, 820,793.55 and 321,950.90 is: 483,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,871.70 : 820,793.55 = 321,950.90 : x
  2. Step 2: Convert to fraction form
    546,871.70/820,793.55 = 321,950.90/x
  3. Step 3: Cross multiply
    546,871.70x = 820,793.55 × 321,950.90
  4. Step 4: Simplify right side
    546,871.70x = 264,255,222,136.70
  5. Step 5: Solve for x
    x = 264,255,222,136.70/546,871.70
  6. Step 6: Final answer
    x = 483,212.46

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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.