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Finding the Fourth Proportional to 539,610.26, 744,642.60 and 297,887.64

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Solution

The fourth proportional to 539,610.26, 744,642.60 and 297,887.64 is: 411,074.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,610.26 : 744,642.60 = 297,887.64 : x
  2. Step 2: Convert to fraction form
    539,610.26/744,642.60 = 297,887.64/x
  3. Step 3: Cross multiply
    539,610.26x = 744,642.60 × 297,887.64
  4. Step 4: Simplify right side
    539,610.26x = 221,819,826,757.46
  5. Step 5: Solve for x
    x = 221,819,826,757.46/539,610.26
  6. Step 6: Final answer
    x = 411,074.15

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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.