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Finding the Fourth Proportional to 534,576.69, 801,752.18 and 318,531.20

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Solution

The fourth proportional to 534,576.69, 801,752.18 and 318,531.20 is: 477,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,576.69 : 801,752.18 = 318,531.20 : x
  2. Step 2: Convert to fraction form
    534,576.69/801,752.18 = 318,531.20/x
  3. Step 3: Cross multiply
    534,576.69x = 801,752.18 × 318,531.20
  4. Step 4: Simplify right side
    534,576.69x = 255,383,078,396.60
  5. Step 5: Solve for x
    x = 255,383,078,396.60/534,576.69
  6. Step 6: Final answer
    x = 477,729.54

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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.