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Finding the Fourth Proportional to 443,321.98, 611,788.25 and 252,347.67

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Solution

The fourth proportional to 443,321.98, 611,788.25 and 252,347.67 is: 348,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,321.98 : 611,788.25 = 252,347.67 : x
  2. Step 2: Convert to fraction form
    443,321.98/611,788.25 = 252,347.67/x
  3. Step 3: Cross multiply
    443,321.98x = 611,788.25 × 252,347.67
  4. Step 4: Simplify right side
    443,321.98x = 154,383,340,051.75
  5. Step 5: Solve for x
    x = 154,383,340,051.75/443,321.98
  6. Step 6: Final answer
    x = 348,242.02

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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.