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Finding the Fourth Proportional to 3,669,489.64, 5,503,806.78 and 974,024.29

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Solution

The fourth proportional to 3,669,489.64, 5,503,806.78 and 974,024.29 is: 1,460,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,489.64 : 5,503,806.78 = 974,024.29 : x
  2. Step 2: Convert to fraction form
    3,669,489.64/5,503,806.78 = 974,024.29/x
  3. Step 3: Cross multiply
    3,669,489.64x = 5,503,806.78 × 974,024.29
  4. Step 4: Simplify right side
    3,669,489.64x = 5,360,841,494,413.85
  5. Step 5: Solve for x
    x = 5,360,841,494,413.85/3,669,489.64
  6. Step 6: Final answer
    x = 1,460,922.91

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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.