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Finding the Fourth Proportional to 546,877.20, 820,315.80 and 322,006.80

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Solution

The fourth proportional to 546,877.20, 820,315.80 and 322,006.80 is: 483,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,877.20 : 820,315.80 = 322,006.80 : x
  2. Step 2: Convert to fraction form
    546,877.20/820,315.80 = 322,006.80/x
  3. Step 3: Cross multiply
    546,877.20x = 820,315.80 × 322,006.80
  4. Step 4: Simplify right side
    546,877.20x = 264,147,265,747.44
  5. Step 5: Solve for x
    x = 264,147,265,747.44/546,877.20
  6. Step 6: Final answer
    x = 483,010.20

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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.