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Finding the Fourth Proportional to 489,183.40, 732,608.70 and 489,183.40

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Solution

The fourth proportional to 489,183.40, 732,608.70 and 489,183.40 is: 732,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,183.40 : 732,608.70 = 489,183.40 : x
  2. Step 2: Convert to fraction form
    489,183.40/732,608.70 = 489,183.40/x
  3. Step 3: Cross multiply
    489,183.40x = 732,608.70 × 489,183.40
  4. Step 4: Simplify right side
    489,183.40x = 358,380,014,735.58
  5. Step 5: Solve for x
    x = 358,380,014,735.58/489,183.40
  6. Step 6: Final answer
    x = 732,608.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.