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Finding the Fourth Proportional to 539,625.13, 744,745.67 and 448,820.89

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Solution

The fourth proportional to 539,625.13, 744,745.67 and 448,820.89 is: 619,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,625.13 : 744,745.67 = 448,820.89 : x
  2. Step 2: Convert to fraction form
    539,625.13/744,745.67 = 448,820.89/x
  3. Step 3: Cross multiply
    539,625.13x = 744,745.67 × 448,820.89
  4. Step 4: Simplify right side
    539,625.13x = 334,257,414,433.05
  5. Step 5: Solve for x
    x = 334,257,414,433.05/539,625.13
  6. Step 6: Final answer
    x = 619,425.22

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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.