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Finding the Fourth Proportional to 539,617.50, 744,684.03 and 297,899.46

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Solution

The fourth proportional to 539,617.50, 744,684.03 and 297,899.46 is: 411,107.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,617.50 : 744,684.03 = 297,899.46 : x
  2. Step 2: Convert to fraction form
    539,617.50/744,684.03 = 297,899.46/x
  3. Step 3: Cross multiply
    539,617.50x = 744,684.03 × 297,899.46
  4. Step 4: Simplify right side
    539,617.50x = 221,840,970,407.62
  5. Step 5: Solve for x
    x = 221,840,970,407.62/539,617.50
  6. Step 6: Final answer
    x = 411,107.81

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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.