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Finding the Fourth Proportional to 539,099.18, 743,947.62 and 297,404.90

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Solution

The fourth proportional to 539,099.18, 743,947.62 and 297,404.90 is: 410,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,099.18 : 743,947.62 = 297,404.90 : x
  2. Step 2: Convert to fraction form
    539,099.18/743,947.62 = 297,404.90/x
  3. Step 3: Cross multiply
    539,099.18x = 743,947.62 × 297,404.90
  4. Step 4: Simplify right side
    539,099.18x = 221,253,667,531.34
  5. Step 5: Solve for x
    x = 221,253,667,531.34/539,099.18
  6. Step 6: Final answer
    x = 410,413.66

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1.5x scale

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.