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Finding the Fourth Proportional to 318,068.89, 477,053.21 and 264,378.34

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Solution

The fourth proportional to 318,068.89, 477,053.21 and 264,378.34 is: 396,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,068.89 : 477,053.21 = 264,378.34 : x
  2. Step 2: Convert to fraction form
    318,068.89/477,053.21 = 264,378.34/x
  3. Step 3: Cross multiply
    318,068.89x = 477,053.21 × 264,378.34
  4. Step 4: Simplify right side
    318,068.89x = 126,122,537,008.73
  5. Step 5: Solve for x
    x = 126,122,537,008.73/318,068.89
  6. Step 6: Final answer
    x = 396,525.85

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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.