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Finding the Fourth Proportional to 318,817.17, 477,700.89 and 222,764.13

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Solution

The fourth proportional to 318,817.17, 477,700.89 and 222,764.13 is: 333,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,817.17 : 477,700.89 = 222,764.13 : x
  2. Step 2: Convert to fraction form
    318,817.17/477,700.89 = 222,764.13/x
  3. Step 3: Cross multiply
    318,817.17x = 477,700.89 × 222,764.13
  4. Step 4: Simplify right side
    318,817.17x = 106,414,623,161.08
  5. Step 5: Solve for x
    x = 106,414,623,161.08/318,817.17
  6. Step 6: Final answer
    x = 333,779.46

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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.