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Finding the Fourth Proportional to 547,774.12, 755,858.82 and 321,337

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Solution

The fourth proportional to 547,774.12, 755,858.82 and 321,337 is: 443,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,774.12 : 755,858.82 = 321,337 : x
  2. Step 2: Convert to fraction form
    547,774.12/755,858.82 = 321,337/x
  3. Step 3: Cross multiply
    547,774.12x = 755,858.82 × 321,337
  4. Step 4: Simplify right side
    547,774.12x = 242,885,405,642.34
  5. Step 5: Solve for x
    x = 242,885,405,642.34/547,774.12
  6. Step 6: Final answer
    x = 443,404.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.