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Finding the Fourth Proportional to 539,576.21, 744,615.31 and 297,858.95

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Solution

The fourth proportional to 539,576.21, 744,615.31 and 297,858.95 is: 411,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,576.21 : 744,615.31 = 297,858.95 : x
  2. Step 2: Convert to fraction form
    539,576.21/744,615.31 = 297,858.95/x
  3. Step 3: Cross multiply
    539,576.21x = 744,615.31 × 297,858.95
  4. Step 4: Simplify right side
    539,576.21x = 221,790,335,507.42
  5. Step 5: Solve for x
    x = 221,790,335,507.42/539,576.21
  6. Step 6: Final answer
    x = 411,045.43

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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.